National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-6507 Detail

Current Description

An issue was discovered in AppArmor before 2.12. Incorrect handling of unknown AppArmor profiles in AppArmor init scripts, upstart jobs, and/or systemd unit files allows an attacker to possibly have increased attack surfaces of processes that were intended to be confined by AppArmor. This is due to the common logic to handle 'restart' operations removing AppArmor profiles that aren't found in the typical filesystem locations, such as /etc/apparmor.d/. Userspace projects that manage their own AppArmor profiles in atypical directories, such as what's done by LXD and Docker, are affected by this flaw in the AppArmor init script logic.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3647 Issue Tracking Patch Third Party Advisory
http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3648 Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/97223
https://bugs.launchpad.net/apparmor/+bug/1668892 Issue Tracking Patch Third Party Advisory
https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-6507.html Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:apparmor:apparmor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.11

Configuration 2 ( hide )
 cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_touch:15.04:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-6507
NVD Published Date:
03/24/2017
NVD Last Modified:
03/31/2017