vulnerability
Apache HTTPD: Padding Oracle in Apache mod_session_crypto (CVE-2016-0736)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Jul 27, 2017 | Jul 27, 2017 | Jul 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Jul 27, 2017
Added
Jul 27, 2017
Modified
Jul 18, 2025
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.
Solution
apache-httpd-upgrade-latest
References
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