Critical severity · published Feb 13, 2017
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…
9.8
CVSS
2.7%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CL
Click · Click Project
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 15.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8768
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8768
bazaar.launchpad.net
http://bazaar.launchpad.net/~click-hackers/click/devel/revision/587
Third Party Advisory
http://ubuntu.com/usn/usn-2771-1
Mailing List
http://www.openwall.com/lists/oss-security/2016/01/12/8
Third Party Advisory
http://www.securityfocus.com/bid/96386
Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/click/+bug/1506467
Issue Tracking
https://code.launchpad.net/~cjwatson/click/audit-missing-dot-slash/+merge/274554
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