Vulnerability Monitor

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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.

Published

2017-02-13T18:59:00.267

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	click_project	click	-	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	15.04	Yes

References

http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587 ([email protected])
http://ubuntu.com/usn/usn-2771-1 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/01/12/8 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/96386 Third Party Advisory, VDB Entry ([email protected])
https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/ ([email protected])
https://plus.google.com/+SzymonWaliczek/posts/3jbG2uiAniF ([email protected])
http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587 (af854a3a-2127-422b-91ae-364da2661108)
http://ubuntu.com/usn/usn-2771-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/01/12/8 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/96386 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/ (af854a3a-2127-422b-91ae-364da2661108)
https://plus.google.com/+SzymonWaliczek/posts/3jbG2uiAniF (af854a3a-2127-422b-91ae-364da2661108)