CVE-2012-5788
PayPal IPN - Server Certificate Hostname Validation Bypass via fsockopen
Title source: llmDescription
The PayPal IPN utility does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP fsockopen function.
References (2)
Core 2
Core References
Exploit x_refsource_misc
http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/79982
Scores
EPSS
0.0057
EPSS Percentile
43.2%
Details
CWE
CWE-20
Status
published
Products (1)
paypal/ipn
Published
Nov 04, 2012
Tracked Since
Feb 18, 2026