Detections
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CentOS 8 : httpd:2.4 (CESA-2021:4257)

medium Nessus Plugin ID 155061

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4257 advisory.

 - httpd: mod_session: NULL pointer dereference when parsing Cookie header (CVE-2021-26690)

 - httpd: Unexpected URL matching with 'MergeSlashes OFF' (CVE-2021-30641)

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 mod_http2 and / or mod_md packages.

See Also

https://access.redhat.com/errata/RHSA-2021:4257

Plugin Details

Severity: Medium

ID: 155061

File Name: centos8_RHSA-2021-4257.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/11/2021

Updated: 11/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-30641

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:mod_http2, p-cpe:/a:centos:centos:mod_md

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2021-26690, CVE-2021-30641

IAVA: 2021-A-0259-S

RHSA: 2021:4257