Permissions, Privileges, and Access Controls in Open vSwitch - CVE-2012-3449
Published: August 7, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43764
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-3449
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: openvswitch.org
Affected software:
Open vSwitch
Open vSwitch
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
Open vSwitch 1.4.2 uses world writable permissions for (1) /var/lib/openvswitch/pki/controllerca/incoming/ and (2) /var/lib/openvswitch/pki/switchca/incoming/, which allows local users to delete and overwrite arbitrary files.
How to mitigate CVE-2012-3449
Install update from vendor's website.
Sources
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683665
- http://www.openwall.com/lists/oss-security/2012/08/02/6
- http://www.openwall.com/lists/oss-security/2012/08/03/6
- http://www.securityfocus.com/bid/54789
- http://www.securityfocus.com/bid/54794
- https://bugzilla.redhat.com/show_bug.cgi?id=845350
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77417