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CBL Mariner 2.0 Security Update: glibc (CVE-2023-4911)

high Nessus Plugin ID 183061

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of glibc installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-4911 advisory.

 - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges. (CVE-2023-4911)

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

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2023-4911

Plugin Details

Severity: High

ID: 183061

File Name: mariner_glibc_CVE-2023-4911.nasl

Version: 1.4

Type: local

Published: 10/13/2023

Updated: 1/29/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-4911

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:glibc-iconv, p-cpe:/a:microsoft:cbl-mariner:glibc-devel, p-cpe:/a:microsoft:cbl-mariner:glibc-i18n, p-cpe:/a:microsoft:cbl-mariner:glibc-nscd, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:glibc-static, p-cpe:/a:microsoft:cbl-mariner:glibc-tools, p-cpe:/a:microsoft:cbl-mariner:glibc, p-cpe:/a:microsoft:cbl-mariner:glibc-debuginfo, p-cpe:/a:microsoft:cbl-mariner:glibc-lang

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CBLMariner/release, Host/CBLMariner/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/10/2023

Vulnerability Publication Date: 9/27/2023

CISA Known Exploited Vulnerability Due Dates: 12/12/2023

Exploitable With

Core Impact

Metasploit (Glibc Tunables Privilege Escalation CVE-2023-4911 (aka Looney Tunables))

Reference Information

CVE: CVE-2023-4911