CVE-2013-2777
No known exploitation. EPSS puts it in the 27th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
sudo before 1.7.10p5 and 1.8.x before 1.8.6p6, when the tty_tickets option is enabled, does not properly validate the controlling terminal device, which allows local users with sudo permissions to hijack the authorization of another terminal via vectors related to a session without a controlling terminal device and connecting to the standard input, output, and error file descriptors of another terminal. NOTE: this is one of three closely-related vulnerabilities that were originally assigned CVE-2013-1776, but they have been SPLIT because of different affected versions.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.4% chance of exploitation activity in the next 30 days, which ranks it in the 27th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 4826 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:L/AC:M/Au:N/C:P/I:P/A:P
Scored 4.4 by NVD.
How it is reached
- Access Vector LocalRequires local access
- Access Complexity MediumSome conditions must be met
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality PartialSome information is disclosed
- Integrity PartialSome data can be modified
- Availability PartialReduced performance or service disruption
Weaknesses
Sources
References in the record
- security.gentoo.org/glsa/glsa-201401-23.xml
- sudo.ws/repos/sudo/rev/ddf399e3e306
- sudo.ws/repos/sudo/rev/bfa23f089bba
And 13 more references. See all after sign-in
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