CVE-2013-1776 (GCVE-0-2013-1776)
Vulnerability from cvelistv5 – Published: 2013-04-08 17:00 – Updated: 2024-08-06 15:13
VLAI
EPSS
VEX
Summary
sudo 1.3.5 through 1.7.10 and 1.8.0 through 1.8.5, 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 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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
16 references
Date Public
2013-02-27 00:00
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "sudo 1.3.5 through 1.7.10 and 1.8.0 through 1.8.5, 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 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."
},
{
"lang": "es",
"value": "sudo v1.3.5 hasta v1.7.10 y v1.8.0 hasta v1.8.5, cuando la opci\u00f3n tty_tickets est\u00e1 activada, no valida correctamente el dispositivo terminal de control, lo que permite a los usuarios locales con permisos de sudo para secuestrar a la autorizaci\u00f3n de otra terminal a trav\u00e9s de vectores relacionados con una sesi\u00f3n sin un dispositivo terminal de control y la conexi\u00f3n a una entrada est\u00e1ndar, salida, y descriptores de error de archivo de otros terminal. NOTA: esta es una de las tres vulnerabilidades estrechamente relacionadas con las que se asign\u00f3 originalmente a CVE-2013-1776, pero se han dividido debido a las diferentes versiones afectadas."
}
],
"id": "CVE-2013-1776",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2013-04-08T17:55:01.100",
"references": [
{
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"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839"
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T12:43:37+00:00",
"cve": "CVE-2013-1776",
"id": "CVE-2013-1776",
"initial_release_date": "2013-02-27T00:00:00+00:00",
"product_status:fixed": "158",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "sudo: bypass of tty_tickets constraints",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-1776.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-09-05T01:29:34Z",
"cve": "CVE-2013-1776",
"id": "CVE-2013-1776",
"initial_release_date": "2023-02-15T05:40:06Z",
"product_status:known_not_affected": "115",
"product_status:recommended": "101",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2013-1776",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-1776.json",
"version": "21"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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