CVE-2015-8768

click/install.py in click does not require files in package filesystem tarballs to start with ./ (dot slash), which allows remote attackers to install an alternate security policy and gain privileges via a crafted package, as demonstrated by the test.mmrow app for Ubuntu phone.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554	Issue Tracking Patch Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467	Issue Tracking Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/12/8	Mailing List Patch Third Party Advisory
http://ubuntu.com/usn/usn-2771-1	Third Party Advisory
http://www.securityfocus.com/bid/96386	Third Party Advisory VDB Entry
https://plus.google.com/+SzymonWaliczek/posts/3jbG2uiAniF
https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/
http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587

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Configurations

Configuration 1 (hide)

cpe:2.3:a:click_project:click:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:15.04:::::::*

Information

Published : 2017-02-13 10:59

Updated : 2017-10-02 18:29

NVD link : CVE-2015-8768

Mitre link : CVE-2015-8768

JSON object : View

CWE

CWE-264

Permissions, Privileges, and Access Controls

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Products Affected

click_project

click

canonical

ubuntu_linux

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