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), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC.

Affected

Apache Software Foundation · Apache HTTP Server

CVSS v3.0 NVD

7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

49.02% chance of exploitation in the next 30 days, 99th percentile

Published

2017-07-27

Updated

2024-09-16

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/40961

Security advisories

• https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-0736
• http://www.securityfocus.com/bid/95078
• http://www.securitytracker.com/id/1037508
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux0…
• https://security.gentoo.org/glsa/201701-36

References

• CVE Record
• NVD entry