Auth bypass in Isc Bind
CVE-2009-0025
BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.069 (93.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.069 · newest: 0.069 · change: 0.000
Affected products
- Isc Bind — versions 9.0, 9.0.0, 9.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.vmware.com/security/advisories/VMSA-2009-0004.html
- marc.info/ (vendor-advisory)
- www.securityfocus.com/bid/33151 (vdb-entry)
- support.apple.com/kb/HT3549
- www.securityfocus.com/archive/1/499827/100/0/threaded (mailing-list)
- issues.rpath.com/browse/RPL-2938
- www.openbsd.org/errata44.html
- wiki.rpath.com/Advisories:rPSA-2009-0009
- secunia.com/advisories/33546 (third-party-advisory)
- support.avaya.com/elmodocs2/security/ASA-2009-045.htm
Frequently asked questions
- What is CVE-2009-0025?
- CVE-2009-0025 is a vulnerability in Isc Bind, classified under Improper Authentication. Published 2009-01-07.
- Is CVE-2009-0025 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.