CVE-2013-2777
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…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.36% · top 70% of all CVEs (5 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Weakness
Affected products
n/a
- affected n/a
References (14)
- http://www.sudo.ws/repos/sudo/rev/bfa23f089bba (opens in a new tab)x_refsource_CONFIRMx_transferred
- 58207 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.sudo.ws/repos/sudo/rev/2f3225a2a4a4 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2013:1701 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-2642 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20130227 Re: CVE request: potential bypass of sudo tty_tickets constraints (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.sudo.ws/sudo/alerts/tty_tickets.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2015-08-13-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- SSA:2013-065-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT205031 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=916365 (opens in a new tab)x_refsource_MISCx_transferred
- sudo-ttytickets-sec-bypass(82453) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-2777)Record last updated .