Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2016-9645

Improper Access Control

Published: Apr 10, 2018 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
4 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-9645
CWEhttps://cwe.mitre.org/data/definitions/284.html

The fix for ikiwiki for CVE-2016-10026 was incomplete resulting in editing restriction bypass for git revert when using git versions older than 2.8.0. This has been fixed in 3.20161229.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Ikiwiki Ikiwiki * 2.8 (excluding)
Ikiwiki Ubuntu artful *
Ikiwiki Ubuntu esm-apps/xenial *
Ikiwiki Ubuntu precise *
Ikiwiki Ubuntu trusty *
Ikiwiki Ubuntu upstream *
Ikiwiki Ubuntu xenial *
Ikiwiki Ubuntu yakkety *
Ikiwiki Ubuntu zesty *

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

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