CVE-2016-0736

Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 27 Jul 2017, 21:00
Last modified:16 Sept 2024, 17:52

Vulnerability Summary

Overall Risk (default)
medium
48/100
CVSS Score
7.5 HIGH
v3.0 (nvd)
EPSS Score
41.68% HIGH
42% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

27 Jul 2017, 21:00
Published
Vulnerability first disclosed
16 Sept 2024, 17:52
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 41.68%• Percentile: 97%

Techniques & Countermeasures

  • CWE-310•Cryptographic Issues

    Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.

Affected Systems

  • apache software foundation•apache http server

    2.4.0 to 2.4.23

  • Unknown•HTTP Server

    2.4.0 | 2.4.1 | 2.4.2 | 2.4.3 | 2.4.6 | 2.4.7 | 2.4.8 | 2.4.9 | 2.4.10 | 2.4.12 | 2.4.14 | 2.4.16 | 2.4.19 | 2.4.20 | 2.4.21 | 2.4.22 | 2.4.23

References (27)