SB2024080806 - Improper verification of cryptographic signature in free5GC udm
Published: August 8, 2024
Security Bulletin ID
SB2024080806
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2023-46324)
CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to pkg/suci/suci.go in free5GC udm may compute a shared secret via an uncompressed public key that has not been validated. A remote attacker can send arbitrary SUCIs to the UDM to gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.