Information disclosure in Asterisk Open Source - #VU13262
Published: June 12, 2018 / Updated: June 12, 2018
Vulnerability identifier: #VU13262
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Asterisk Open Source
Detailed vulnerability description
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to an error when the system is configured with endpoint-specific access control list (ACL) rules. A remote attacker can send a SIP request to cause the system to return a 403 Forbidden response and disclose the existence of the PJSIP endpoint.
Remediation
Update to version 13.21.1, 14.7.7 or 15.4.1.