CVE-2012-5789: Input Validation
First published: Sun Nov 04 2012(Updated: )
PayPal Payments Standard PHP Library before 20120427 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 intentional disabling of certificate-validation checks through a "FALSE" value.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PayPal Website Payments Standard |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2012-5789?
CVE-2012-5789 is classified as a moderate severity vulnerability due to its potential to allow man-in-the-middle attacks.
What does CVE-2012-5789 allow attackers to do?
CVE-2012-5789 allows man-in-the-middle attackers to spoof SSL servers using arbitrary valid certificates.
How can I mitigate CVE-2012-5789?
To mitigate CVE-2012-5789, ensure you are using the updated version of the PayPal Payments Standard PHP Library released after April 27, 2012.
Which versions are affected by CVE-2012-5789?
CVE-2012-5789 affects the PayPal Payments Standard PHP Library versions prior to 20120427.
Is it safe to use PayPal Payments Standard after fixing CVE-2012-5789?
Once CVE-2012-5789 is addressed by updating to the latest version, using PayPal Payments Standard becomes safer.
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