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CVE-2016-0736 In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default...

HighCVSS 7.5 EPSS 49.0%
Published
Updated
Exploit status
No public exploit known

Description

In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC.

Affected products

ProductAffected versionsFixed in
debian/apache2(Debian:12) < 2.4.25-1 2.4.25-1
debian/apache2(Debian:13) < 2.4.25-1 2.4.25-1
debian/apache2(Debian:14) < 2.4.25-1 2.4.25-1
Apache HTTP Server = 2.4.0 No fix listed
Apache HTTP Server = 2.4.1 No fix listed
Apache HTTP Server = 2.4.2 No fix listed
Apache HTTP Server = 2.4.3 No fix listed
Apache HTTP Server = 2.4.6 No fix listed
Apache HTTP Server = 2.4.7 No fix listed
Apache HTTP Server = 2.4.8 No fix listed
Apache HTTP Server = 2.4.9 No fix listed
Apache HTTP Server = 2.4.10 No fix listed
Apache HTTP Server = 2.4.12 No fix listed
Apache HTTP Server = 2.4.14 No fix listed
Apache HTTP Server = 2.4.16 No fix listed
Apache HTTP Server = 2.4.19 No fix listed
Apache HTTP Server = 2.4.20 No fix listed
Apache HTTP Server = 2.4.21 No fix listed
Apache HTTP Server = 2.4.22 No fix listed
Apache HTTP Server = 2.4.23 No fix listed
Apache HTTP Server = 2.4.0 to 2.4.23 No fix listed

References