Information disclosure in Asterisk Open Source and Certified Asterisk - CVE-2018-12227
Published: November 12, 2018
Vulnerability identifier: #VU15804
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: CVE-2018-12227
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Certified Asterisk
Asterisk Open Source
Certified Asterisk
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to application responds with different error codes depending on presence of ACL rules for SIP requests. A remote attacker can identify presence of ACL rules.
How to mitigate CVE-2018-12227
Install updates from vendor's website.