certfr_avis - certa-2011-avi-245

CERTA-2011-AVI-245

Vulnerability from certfr_avis

Une vulnérabilité a été corrigée dans le service mountd de FreeBSD. Elle permet à un client non autorisé d'accéder à un partage NFS.

Description

Une vulnérabilité a été corrigée dans le service mountd de FreeBSD. Une mauvaise gestion des masques réseaux de la configuration du serveur NFS par le service mountd permet à un client non autorisé d'accéder à un partage NFS. La vulnérabilité est présente si ce masque n'est pas un multiple de huit.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Toutes versions supportées de FreeBSD.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2011-1739 (GCVE-0-2011-1739)

Vulnerability from cvelistv5

Published

2011-05-03 20:00

Modified

2024-08-06 22:37

Severity ?

CWE

Summary

The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.

References

URL

Tags

	http://www.vupen.com/english/advisories/2011/1076	vdb-entry, x_refsource_VUPEN
	http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc	vendor-advisory, x_refsource_FREEBSD
	http://www.securityfocus.com/bid/47517	vdb-entry, x_refsource_BID
	https://exchange.xforce.ibmcloud.com/vulnerabilities/66981	vdb-entry, x_refsource_XF
	http://securitytracker.com/id?1025425	vdb-entry, x_refsource_SECTRACK
	http://secunia.com/advisories/44307	third-party-advisory, x_refsource_SECUNIA

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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