High severity · published Dec 2, 2020
CVE-2012-0955
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py
7.4
CVSS
0.6%
EPSS
No
On KEV
Description
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
Software-properties · Canonical
before 0.92 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-0955
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-0955
Patch
https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753
Exploit
https://launchpad.net/bugs/1036839
More from Software-properties
–
CVE-2011-4407
ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers…