Auth bypass in Arrl Tqsllib
CVE-2009-0124
The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal 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: 0.013 (68.0th percentile) — read the EPSS interpretation.
Affected products
- Arrl Tqsllib — versions 2.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_SECUNIA, third-party-advisory)
- cve@mitre.org (vendor-advisory, x_refsource_FEDORA)
- cve@mitre.org (Exploit, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2009-0124?
- CVE-2009-0124 is a vulnerability in Arrl Tqsllib, classified under Improper Authentication. Published 2009-01-15.
- Is CVE-2009-0124 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.