According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An elevation of privilege vulnerability exists when an     attacker establishes a vulnerable Netlogon secure     channel connection to a domain controller, using the     Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon     Elevation of Privilege Vulnerability'.(CVE-2020-1472)

  - A flaw was found in the AD DC NBT server in all Samba     versions before 4.10.17, before 4.11.11 and before     4.12.4. A samba user could send an empty UDP packet to     cause the samba server to crash.(CVE-2020-14303)

  - There is an issue in all samba 4.11.x versions before     4.11.5, all samba 4.10.x versions before 4.10.12 and     all samba 4.9.x versions before 4.9.18, where the     removal of the right to create or modify a subtree     would not automatically be taken away on all domain     controllers.(CVE-2019-14902)

  - All samba versions 4.9.x before 4.9.18, 4.10.x before     4.10.12 and 4.11.x before 4.11.5 have an issue where if     it is set with 'log level = 3' (or above) then the     string obtained from the client, after a failed     character conversion, is printed. Such strings can be     provided during the NTLMSSP authentication exchange. In     the Samba AD DC in particular, this may cause a     long-lived process(such as the RPC server) to     terminate. (In the file server case, the most likely     target, smbd, operates as process-per-client and so a     crash there is harmless).(CVE-2019-14907)

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the (poorly named) dnsserver RPC pipe provides     administrative facilities to modify DNS records and     zones. Samba, when acting as an AD DC, stores DNS     records in LDAP. In AD, the default permissions on the     DNS partition allow creation of new records by     authenticated users. This is used for example to allow     machines to self-register in DNS. If a DNS record was     created that case-insensitively matched the name of the     zone, the ldb_qsort() and dns_name_compare() routines     could be confused into reading memory prior to the list     of DNS entries when responding to DnssrvEnumRecords()     or DnssrvEnumRecords2() and so following invalid memory     as a pointer.(CVE-2019-14861)

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the S4U (MS-SFU) Kerberos delegation model includes a     feature allowing for a subset of clients to be opted     out of constrained delegation in any way, either     S4U2Self or regular Kerberos authentication, by forcing     all tickets for these clients to be non-forwardable. In     AD this is implemented by a user attribute     delegation_not_allowed (aka not-delegated), which     translates to disallow-forwardable. However the Samba     AD DC does not do that for S4U2Self and does set the     forwardable flag even if the impersonated client has     the not-delegated flag set.(CVE-2019-14870)

  - A flaw was found in samba's Heimdal KDC implementation,     versions 4.8.x up to, excluding 4.8.12, 4.9.x up to,     excluding 4.9.8 and 4.10.x up to, excluding 4.10.3,     when used in AD DC mode. A man in the middle attacker     could use this flaw to intercept the request to the KDC     and replace the user name (principal) in the request     with any desired user name (principal) that exists in     the KDC effectively obtaining a ticket for that     principal.(CVE-2018-16860)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update to Samba 4.10.11, Security fixes for CVE-2019-14861 and CVE-2019-14870

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for samba fixes the following issues :

CVE-2019-14861: Fixed a DNSServer RPC server crash, that allowed an authenticated user to crash the DCE/RPC DNS management server by creating records with matching the zone name (bsc#1158108).

CVE-2019-14870: Fixed a DelegationNotAllowed not being enforced (bsc#1158109).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3206 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3206-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     November 26, 2022                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : heimdal     Version        : 7.5.0+dfsg-3+deb10u1     CVE ID         : CVE-2019-14870 CVE-2021-3671 CVE-2021-44758 CVE-2022-3437                      CVE-2022-41916 CVE-2022-42898 CVE-2022-44640     Debian Bug     : 946786 996586 1024187

    Multiple security vulnerabilities were discovered in heimdal, an     implementation of the Kerberos 5 authentication protocol, which may     result in denial of service, information disclosure, or remote code     execution.

    CVE-2019-14870

        Isaac Boukris reported that the Heimdal KDC before 7.7.1 does not         apply delegation_not_allowed (aka not-delegated) user attributes for         S4U2Self.  Instead the forwardable flag is set even if the         impersonated client has the not-delegated flag set.

    CVE-2021-3671

        Joseph Sutton discovered that the Heimdal KDC before 7.7.1 does not         check for missing missing sname in TGS-REQ (Ticket Granting Server -         Request) before before dereferencing.  An authenticated user could         use this flaw to crash the KDC.

    CVE-2021-44758

        It was discovered that Heimdal is prone to a NULL dereference in         acceptors when the initial SPNEGO token has no acceptable         mechanisms, which may result in denial of service for a server         application that uses the Simple and Protected GSSAPI Negotiation         Mechanism (SPNEGO).

    CVE-2022-3437

        Evgeny Legerov reported that the DES and Triple-DES decryption         routines in the Heimdal GSSAPI library before 7.7.1 were prone to         buffer overflow on malloc() allocated memory when presented with a         maliciously small packet.  In addition, the Triple-DES and RC4         (arcfour) decryption routine were prone to non-constant time leaks,         which could potentially yield to a leak of secret key material when         using these ciphers.

    CVE-2022-41916

        It was discovered that Heimdal's PKI certificate validation library         before 7.7.1 can under some circumstances perform an out-of-bounds         memory access when normalizing Unicode, which may result in denial         of service.

    CVE-2022-42898

        Greg Hudson discovered an integer multiplication overflow in the         Privilege Attribute Certificate (PAC) parsing routine, which may         result in denial of service for Heimdal KDCs and possibly Heimdal         servers (e.g., via GSS-API) on 32-bit systems.

    CVE-2022-44640

        Douglas Bagnall and the Heimdal maintainers independently discovered         that Heimdal's ASN.1 compiler before 7.7.1 generates code that         allows specially crafted DER encodings of CHOICEs to invoke the         wrong free() function on the decoded structure upon decode error,         which may result in remote code execution in the Heimdal KDC and         possibly the Kerberos client, the X.509 library, and other         components as well.

    For Debian 10 buster, these problems have been fixed in version     7.5.0+dfsg-3+deb10u1.

    We recommend that you upgrade your heimdal packages.

    For the detailed security status of heimdal please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/heimdal

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Heimdal before 7.4 allows remote attackers to     impersonate services with Orpheus' Lyre attacks because     it obtains service-principal names in a way that     violates the Kerberos 5 protocol specification. In
    _krb5_extract_ticket() the KDC-REP service name must be     obtained from the encrypted version stored in     'enc_part' instead of the unencrypted version stored in     'ticket'. Use of the unencrypted version provides an     opportunity for successful server impersonation and     other attacks. NOTE: this CVE is only for Heimdal and     other products that embed Heimdal code it does not     apply to other instances in which this part of the     Kerberos 5 protocol specification is     violated.(CVE-2017-11103)

  - A use-after-free flaw was found in all samba LDAP     server versions before 4.10.17, before 4.11.11, before     4.12.4 used in a AC DC configuration. A Samba LDAP user     could use this flaw to crash samba.(CVE-2020-10760)

  - There is an issue in all samba 4.11.x versions before     4.11.5, all samba 4.10.x versions before 4.10.12 and     all samba 4.9.x versions before 4.9.18, where the     removal of the right to create or modify a subtree     would not automatically be taken away on all domain     controllers.(CVE-2019-14902)

  - All samba versions 4.9.x before 4.9.18, 4.10.x before     4.10.12 and 4.11.x before 4.11.5 have an issue where if     it is set with 'log level = 3' (or above) then the     string obtained from the client, after a failed     character conversion, is printed. Such strings can be     provided during the NTLMSSP authentication exchange. In     the Samba AD DC in particular, this may cause a     long-lived process(such as the RPC server) to     terminate. (In the file server case, the most likely     target, smbd, operates as process-per-client and so a     crash there is harmless).(CVE-2019-14907)

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the (poorly named) dnsserver RPC pipe provides     administrative facilities to modify DNS records and     zones. Samba, when acting as an AD DC, stores DNS     records in LDAP. In AD, the default permissions on the     DNS partition allow creation of new records by     authenticated users. This is used for example to allow     machines to self-register in DNS. If a DNS record was     created that case-insensitively matched the name of the     zone, the ldb_qsort() and dns_name_compare() routines     could be confused into reading memory prior to the list     of DNS entries when responding to DnssrvEnumRecords()     or DnssrvEnumRecords2() and so following invalid memory     as a pointer.(CVE-2019-14861)

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the S4U (MS-SFU) Kerberos delegation model includes a     feature allowing for a subset of clients to be opted     out of constrained delegation in any way, either     S4U2Self or regular Kerberos authentication, by forcing     all tickets for these clients to be non-forwardable. In     AD this is implemented by a user attribute     delegation_not_allowed (aka not-delegated), which     translates to disallow-forwardable. However the Samba     AD DC does not do that for S4U2Self and does set the     forwardable flag even if the impersonated client has     the not-delegated flag set.(CVE-2019-14870)

  - A flaw was found in the samba client, all samba     versions before samba 4.11.2, 4.10.10 and 4.9.15, where     a malicious server can supply a pathname to the client     with separators. This could allow the client to access     files and folders outside of the SMB network pathnames.
    An attacker could use this vulnerability to create     files outside of the current working directory using     the privileges of the client user.(CVE-2019-10218)

  - A flaw was found in Samba, all versions starting samba     4.5.0 before samba 4.9.15, samba 4.10.10, samba 4.11.2,     in the way it handles a user password change or a new     password for a samba user. The Samba Active Directory     Domain Controller can be configured to use a custom     script to check for password complexity. This     configuration can fail to verify password complexity     when non-ASCII characters are used in the password,     which could lead to weak passwords being set for samba     users, making it vulnerable to dictionary     attacks.(CVE-2019-14833)

  - A flaw was found in samba 4.0.0 before samba 4.9.15 and     samba 4.10.x before 4.10.10. An attacker can crash AD     DC LDAP server via dirsync resulting in denial of     service. Privilege escalation is not possible with this     issue.(CVE-2019-14847)

  - A flaw was found in the AD DC NBT server in all Samba     versions before 4.10.17, before 4.11.11 and before     4.12.4. A samba user could send an empty UDP packet to     cause the samba server to crash.(CVE-2020-14303)

  - A flaw was found in samba's Heimdal KDC implementation,     versions 4.8.x up to, excluding 4.8.12, 4.9.x up to,     excluding 4.9.8 and 4.10.x up to, excluding 4.10.3,     when used in AD DC mode. A man in the middle attacker     could use this flaw to intercept the request to the KDC     and replace the user name (principal) in the request     with any desired user name (principal) that exists in     the KDC effectively obtaining a ticket for that     principal.(CVE-2018-16860)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the samba packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the S4U (MS-SFU) Kerberos delegation model includes a     feature allowing for a subset of clients to be opted     out of constrained delegation in any way, either     S4U2Self or regular Kerberos authentication, by forcing     all tickets for these clients to be non-forwardable. In     AD this is implemented by a user attribute     delegation_not_allowed (aka not-delegated), which     translates to disallow-forwardable. However the Samba     AD DC does not do that for S4U2Self and does set the     forwardable flag even if the impersonated client has     the not-delegated flag set.(CVE-2019-14870)

  - All Samba versions 4.x.x before 4.9.17, 4.10.x before     4.10.11 and 4.11.x before 4.11.3 have an issue, where     the (poorly named) dnsserver RPC pipe provides     administrative facilities to modify DNS records and     zones. Samba, when acting as an AD DC, stores DNS     records in LDAP. In AD, the default permissions on the     DNS partition allow creation of new records by     authenticated users. This is used for example to allow     machines to self-register in DNS. If a DNS record was     created that case-insensitively matched the name of the     zone, the ldb_qsort() and dns_name_compare() routines     could be confused into reading memory prior to the list     of DNS entries when responding to DnssrvEnumRecords()     or DnssrvEnumRecords2() and so following invalid memory     as a pointer.(CVE-2019-14861)

  - All samba versions 4.9.x before 4.9.18, 4.10.x before     4.10.12 and 4.11.x before 4.11.5 have an issue where if     it is set with 'log level = 3' (or above) then the     string obtained from the client, after a failed     character conversion, is printed. Such strings can be     provided during the NTLMSSP authentication exchange. In     the Samba AD DC in particular, this may cause a     long-lived process(such as the RPC server) to     terminate. (In the file server case, the most likely     target, smbd, operates as process-per-client and so a     crash there is harmless).(CVE-2019-14907)

  - There is an issue in all samba 4.11.x versions before     4.11.5, all samba 4.10.x versions before 4.10.12 and     all samba 4.9.x versions before 4.9.18, where the     removal of the right to create or modify a subtree     would not automatically be taken away on all domain     controllers.(CVE-2019-14902)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
142333	EulerOS 2.0 SP2 : samba (EulerOS-SA-2020-2396)	Nessus	Huawei Local Security Checks	2020/11/3	2026/1/12	high
132638	Fedora 30 : 2:samba (2019-11dddb785b)	Nessus	Fedora Local Security Checks	2020/1/6	2024/4/1	medium
132238	SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2019:3318-1)	Nessus	SuSE Local Security Checks	2019/12/18	2021/1/13	medium
168205	Debian dla-3206 : heimdal-clients - security update	Nessus	Debian Local Security Checks	2022/11/27	2025/1/22	critical
140877	EulerOS 2.0 SP3 : samba (EulerOS-SA-2020-2110)	Nessus	Huawei Local Security Checks	2020/9/28	2024/2/19	high
136229	EulerOS Virtualization for ARM 64 3.0.2.0 : samba (EulerOS-SA-2020-1526)	Nessus	Huawei Local Security Checks	2020/5/1	2024/3/13	medium

检测

插件搜索

high

medium

medium

critical

high

medium