Auth bypass in Asterisk Business Edition
CVE-2008-5558
Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Asterisk Business Edition — versions b.2.3.4, b.2.3.5, b.2.5.0
- Asterisk Open Source — versions 1.2.26, 1.2.26.1, 1.2.26.2
Weakness classification (CWE)
References
- www.securityfocus.com/bid/32773 (vdb-entry)
- security.gentoo.org/glsa/glsa-200905-01.xml (vendor-advisory)
- secunia.com/advisories/32956 (Vendor Advisory, third-party-advisory)
- osvdb.org/50675 (vdb-entry)
- securityreason.com/securityalert/4769 (third-party-advisory)
- www.securityfocus.com/archive/1/499117/100/0/threaded (mailing-list)
- downloads.digium.com/pub/security/AST-2008-012.html
- www.vupen.com/english/advisories/2008/3403 (vdb-entry)
- secunia.com/advisories/34982 (third-party-advisory)
- www.securitytracker.com/id (vdb-entry)