FreeBSD : Apache -- HTTP OPTIONS method can leak server memory (76b085e2-9d33-11e7-9260-000c292ee6b8) (Optionsbleed)

high Nessus Plugin ID 103344

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The Fuzzing Project reports :

Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?5a9655b5

Plugin Details

Severity: High

ID: 103344

File Name: freebsd_pkg_76b085e29d3311e79260000c292ee6b8.nasl

Version: 3.9

Type: local

Published: 9/20/2017

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:apache22, p-cpe:/a:freebsd:freebsd:apache24, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/19/2017

Vulnerability Publication Date: 9/18/2017

Reference Information

CVE: CVE-2017-9798