CVE-2016-0736

high

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.

References

https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-0736

https://security.gentoo.org/glsa/201701-36

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us

http://www.securitytracker.com/id/1037508

http://www.securityfocus.com/bid/95078

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

https://www.tenable.com/security/tns-2017-04

http://www.debian.org/security/2017/dsa-3796

https://support.apple.com/HT208221

https://access.redhat.com/errata/RHSA-2017:1414

https://access.redhat.com/errata/RHSA-2017:1413

https://access.redhat.com/errata/RHSA-2017:1161

https://access.redhat.com/errata/RHSA-2017:0906

http://rhn.redhat.com/errata/RHSA-2017-1415.html

https://security.netapp.com/advisory/ntap-20180423-0001/

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccvs.httpd.apache.org%3E

Details

Source: MITRE

Published: 2017-07-27

Updated: 2021-06-06

Type: CWE-310

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH