SB2022093048 - openEuler update for mod_security_crs



SB2022093048 - openEuler update for mod_security_crs

Published: September 30, 2022

Security Bulletin ID SB2022093048
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2022-39958)

The vulnerability allows a remote attacker to bypass filtration rules.

The vulnerability exists due to insufficient validation of the HTTP Range header field with a small byte range. A remote attacker can exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range.


2) Input validation error (CVE-ID: CVE-2022-39957)

The vulnerability allows a remote attacker to bypass filtration rules.

The vulnerability exists due to insufficient validation of HTTP Accept header field containing an optional "charset" parameter. A remote attacker can send a specially crafted HTTP request and bypass WAF detection.


Remediation

Install update from vendor's website.