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 d
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.
- Published
- Apr 8, 2013
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 28th percentile
- CWE
- CWE-264
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Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| apple | mac os x | cpe:2.3:o:apple:mac_os_x |
| todd miller | sudo | cpe:2.3:a:todd_miller:sudo |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apple mac os xup to 10.10.4 inclusive
- todd miller sudoup to 1.7.10p4 inclusive
- todd miller sudo1.3.5
- todd miller sudo1.6
- todd miller sudo1.6.1
- todd miller sudo1.6.2
- todd miller sudo1.6.2p3
- todd miller sudo1.6.3
- todd miller sudo1.6.3_p7
- todd miller sudo1.6.4
- todd miller sudo1.6.4p2
- todd miller sudo1.6.5
- todd miller sudo1.6.6
- todd miller sudo1.6.7
- todd miller sudo1.6.7p5
- todd miller sudo1.6.8
- todd miller sudo1.6.8p12
- todd miller sudo1.6.9
- todd miller sudo1.6.9p20
- todd miller sudo1.6.9p21
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | sudo | before 1.8.5p2-1+nmu1 | 1.8.5p2-1+nmu1 |
| Debian:6.0 | sudo | before 1.7.4p4-2.squeeze.4 | 1.7.4p4-2.squeeze.4 |
| Red Hat:enterprise_linux:6::client | sudo | before 0:1.8.6p3-12.el6 | 0:1.8.6p3-12.el6 |
| Red Hat:enterprise_linux:6::client | sudo-debuginfo | before 0:1.8.6p3-12.el6 | 0:1.8.6p3-12.el6 |
| Red Hat:enterprise_linux:6::client | sudo-devel | before 0:1.8.6p3-12.el6 | 0:1.8.6p3-12.el6 |
Same product
apple: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-30657A logic issue was addressed with improved state management.KEV73This week
- CVE-2015-1130The XPC implementation in Admin Framework in Apple OS X before 10.10.3 allows local users to bypass authentication and obtain admin privilegKEV64This week
- CVE-2021-30713A permissions issue was addressed with improved validation.KEV63This week
- CVE-2019-8526A use after free issue was addressed with improved memory management.KEV61This week
- CVE-2022-22674An out-of-bounds read issue existed that led to the disclosure of kernel memory.KEV52Plan
- CVE-2007-2386Buffer overflow in mDNSResponder in Apple Mac OS X 10.4 up to 10.4.9 allows remote attackers to cause a denial of service (application termi52Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:sudo | 1.8.5p2-1+nmu1 · Debian:12 | Package registry (OSV) |
| red hat:sudo | 0:1.8.6p3-12.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:sudo-debuginfo | 0:1.8.6p3-12.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:sudo-devel | 0:1.8.6p3-12.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
CWE-264 · Permissions, Privileges, and Access ControlsCVSS vector
AV:L/AC:M/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
- lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- rhn.redhat.com/errata/RHSA-2013-1701.html
- www.debian.org/security/2013/dsa-2642
- www.openwall.com/lists/oss-security/2013/02/27/31
- www.securityfocus.com/bid/58207
- www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440
- www.sudo.ws/repos/sudo/rev/2f3225a2a4a4
- www.sudo.ws/repos/sudo/rev/bfa23f089bba
- www.sudo.ws/sudo/alerts/tty_tickets.html
- bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023
- bugzilla.redhat.com/show_bug.cgi?id=916365
- exchange.xforce.ibmcloud.com/vulnerabilities/82453
- support.apple.com/kb/HT205031
Vendor advisories and official records. Exploit/PoC links are deliberately left out.