CVE-2013-6890

denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.

CVSS v2.0 5.0 MEDIUM

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://seclists.org/oss-sec/2013/q4/535
http://secunia.com/advisories/56239	Vendor Advisory
http://www.debian.org/security/2013/dsa-2826
https://bugzilla.redhat.com/show_bug.cgi?id=1045982
http://seclists.org/oss-sec/2013/q4/535
http://secunia.com/advisories/56239	Vendor Advisory
http://www.debian.org/security/2013/dsa-2826
https://bugzilla.redhat.com/show_bug.cgi?id=1045982

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:debian:debian_linux:6.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.1:::::::*
	cpe:2.3:o:fedoraproject:fedora::::::::

Configuration 2 (hide)

cpe:2.3:a:phil_schwartz:denyhosts:2.6:*:*:*:*:*:*:*

History

21 Nov 2024, 01:59

Type	Values Removed	Values Added
References	~~() http://seclists.org/oss-sec/2013/q4/535 -~~	() http://seclists.org/oss-sec/2013/q4/535 -
References	~~() http://secunia.com/advisories/56239 - Vendor Advisory~~	() http://secunia.com/advisories/56239 - Vendor Advisory
References	~~() http://www.debian.org/security/2013/dsa-2826 -~~	() http://www.debian.org/security/2013/dsa-2826 -
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=1045982 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=1045982 -

Information

Published : 2013-12-23 22:55

Updated : 2024-11-21 01:59

NVD link : CVE-2013-6890

Mitre link : CVE-2013-6890

CVE.ORG link : CVE-2013-6890

JSON object : View

Products Affected

fedoraproject

fedora

phil_schwartz

denyhosts

debian

debian_linux

CWE

CWE-287

Improper Authentication

{"id": "CVE-2013-6890", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2013-12-23T22:55:03.050", "references": [{"url": "http://seclists.org/oss-sec/2013/q4/535", "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/56239", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2013/dsa-2826", "source": "cve@mitre.org"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982", "source": "cve@mitre.org"}, {"url": "http://seclists.org/oss-sec/2013/q4/535", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://secunia.com/advisories/56239", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2013/dsa-2826", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1045982", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names."}, {"lang": "es", "value": "denyhosts v2.6 utiliza una expresi\u00f3n regular incorrecta al analizar los registros de autenticaci\u00f3n, , lo cual permite a atacantes remotos causar una denegaci\u00f3n de servicio (secuencia incorrecta de direcciones IP) a trav\u00e9s de nombres de inicio de sesi\u00f3n manipulados."}], "lastModified": "2024-11-21T01:59:55.363", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "036E8A89-7A16-411F-9D31-676313BB7244"}, {"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"}, {"criteria": "cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B21E9A8-CE63-42C2-A11A-94D977A96DF1"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20294CE7-12C8-43CA-A702-5ED2A3044FFC"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:phil_schwartz:denyhosts:2.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B8215831-4E32-4451-AB45-598B8F5620A9"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}