SB2023102555 - Security restrictions bypass in Junos OS SIP ALG
Published: October 25, 2023
Security Bulletin ID
SB2023102555
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2023-44198)
CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The vulnerability exists due to improper check for unusual or exceptional conditions error in the SIP ALG. A remote non-authenticated attacker can force a device to forward malformed packets and treat them as valid after receiving a specially crafted SIP packet.
Remediation
Install update from vendor's website.