Short Name |
HTTP:PHP:OPENSSL-X509-CERT-MC |
---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop |
Category |
HTTP |
Keywords |
PHP OpenSSL Extension X.509 Certificate Memory Corruption |
Release Date |
2014/02/25 |
Update Number |
2349 |
Supported Platforms |
idp-4.0+, isg-3.1.134269+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
This signature detects attempts to exploit a known vulnerability against PHP OpenSSL Extension X.509 Certificate. A successful attack can lead to arbitrary code execution.
The asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse (1) notBefore and (2) notAfter timestamps in X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted certificate that is not properly handled by the openssl_x509_parse function.