CVE-2011-1784 (GCVE-0-2011-1784)
Vulnerability from cvelistv5 – Published: 2011-05-20 22:00 – Updated: 2024-08-06 22:37
VLAI
EPSS
VEX
Summary
The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| http://lists.debian.org/debian-security/2011/05/m… | mailing-listx_refsource_MLIST |
| http://lists.debian.org/debian-security/2011/05/m… | mailing-listx_refsource_MLIST |
| http://openwall.com/lists/oss-security/2011/05/10/5 | mailing-listx_refsource_MLIST |
| http://www.securityfocus.com/bid/47859 | vdb-entryx_refsource_BID |
| http://www.osvdb.org/72380 | vdb-entryx_refsource_OSVDB |
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281 | x_refsource_CONFIRM |
| http://secunia.com/advisories/44460 | third-party-advisoryx_refsource_SECUNIA |
| http://openwall.com/lists/oss-security/2011/05/16/7 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=704039 | x_refsource_CONFIRM |
| http://lists.debian.org/debian-security/2011/05/m… | mailing-listx_refsource_MLIST |
Date Public
2011-05-10 00:00
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"value": "La funci\u00f3n pidfile_write en core/pidfile.c en keepalived v1.2.2 y versiones anteriores utiliza permisos 0666 permisos para (1) keepalived.pid, (2) checkers.pid, y (3) archivos vrrp.pid en /var/run/, lo que permite a usuarios locales matar procesos de su elecci\u00f3n escribiendo un PID en uno de estos archivos."
}
],
"id": "CVE-2011-1784",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.6,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2011-05-20T22:55:04.970",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.debian.org/debian-security/2011/05/msg00012.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.debian.org/debian-security/2011/05/msg00013.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.debian.org/debian-security/2011/05/msg00018.html"
},
{
"source": "secalert@redhat.com",
"url": "http://openwall.com/lists/oss-security/2011/05/10/5"
},
{
"source": "secalert@redhat.com",
"url": "http://openwall.com/lists/oss-security/2011/05/16/7"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/44460"
},
{
"source": "secalert@redhat.com",
"url": "http://www.osvdb.org/72380"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/47859"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=704039"
},
{
"source": "secalert@redhat.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/67477"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626281"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.debian.org/debian-security/2011/05/msg00012.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.debian.org/debian-security/2011/05/msg00013.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.debian.org/debian-security/2011/05/msg00018.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://openwall.com/lists/oss-security/2011/05/10/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://openwall.com/lists/oss-security/2011/05/16/7"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/44460"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.osvdb.org/72380"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/47859"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=704039"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/67477"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-11-21T12:57:48+00:00",
"cve": "CVE-2011-1784",
"id": "CVE-2011-1784",
"initial_release_date": "2011-05-10T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "keepalived: insecure permissions on pid files",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-1784.json",
"version": "3"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.