Auth bypass in Zxid

CVE-2009-0051

ZXID 0.29 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

EPSS: 0.012 (64.3th percentile) — read the EPSS interpretation.

Affected products

  • Zxid — versions 0.1, 0.2, 0.3
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2009-0051?
CVE-2009-0051 is a vulnerability in Zxid, classified under Improper Authentication. Published 2009-01-07.
Is CVE-2009-0051 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.