HTTP: PHP OpenSSL Extension X.509 Certificate Memory Corruption
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.
Extended Description
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.
Affected Products
Php php
References
CVE: CVE-2013-6420
Short Name
HTTP:PHP:OPENSSL-X509-CERT-MC
Severity
Major
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2013-6420 Certificate Corruption Extension Memory OpenSSL PHP X.509
Release Date
02/26/2014
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3650
False Positive
Unknown
Vendors
Opensuse
Php
Apple
CVSS Score
7.5