Information disclosure in Asterisk Business Edition
CVE-2013-2264
The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.013 (68.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Asterisk Business Edition — versions c.3.2.2, c.3.3, c.3.3.2
- Asterisk Certified — versions 1.8.15, 1.8.15.0
- Asterisk Digiumphones — versions 10.0.0, 10.1.0, 10.2.0
- Asterisk Open Source — versions 1.8.0, 1.8.1, 1.8.1.1
Weakness classification (CWE)
References
- downloads.asterisk.org/pub/security/AST-2013-003.html (Vendor Advisory)
- issues.asterisk.org/jira/browse/ASTERISK-21013 (Vendor Advisory)