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CBL Mariner 2.0 Security Update: curl (CVE-2023-27538)

medium Nessus Plugin ID 174544

Synopsis

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

Description

The version of curl 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-2023-27538 advisory.

 - An authentication bypass vulnerability exists in libcurl v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse.
 libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection. (CVE-2023-27538)

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-2023-27538

Plugin Details

Severity: Medium

ID: 174544

File Name: mariner_curl_CVE-2023-27538.nasl

Version: 1.1

Type: local

Published: 4/20/2023

Updated: 5/19/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2023-27538

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:curl, p-cpe:/a:microsoft:cbl-mariner:curl-debuginfo, p-cpe:/a:microsoft:cbl-mariner:curl-devel, p-cpe:/a:microsoft:cbl-mariner:curl-libs, x-cpe:/o:microsoft:cbl-mariner

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: 4/11/2023

Vulnerability Publication Date: 3/20/2023

Reference Information

CVE: CVE-2023-27538

IAVA: 2023-A-0153-S