SB2024071550 - Security restrictions bypass in Junos OS flowd
Published: July 15, 2024
Security Bulletin ID
SB2024071550
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 security vulnerability.
1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2024-39561)
The vulnerability allows a remote non-authenticated attacker to bypass implemented security restrictions.
The vulnerability exists due to improper check for unusual or exceptional conditions error in the flow daemon (flowd). A remote non-authenticated attacker can send TCP packets with SYN/FIN or SYN/RST flags, bypassing the expected blocking of these packets.
Remediation
Install update from vendor's website.