CVE-2009-1630

kernel: nfs: fix NFS v4 client handling of MAY_EXEC in nfs_permission

Severity Score

4.4

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.

La función nfs_permission en fs/nfs/dir.c en la implementación cliente NFS en Linux kernel v2.6.29.3 y versiones anteriores, cuando atomic_open está activo, no comprueba la ejecución (también conocido como EXEC or MAY_EXEC) de permisos de bits, lo cual permite a usuarios locales evitar permisos y ejecutar ficheros, como lo demostrado por ficheros en un servidor de ficheros NFSv4.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-05-14 CVE Reserved
2009-05-14 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (33)

URL	Tag	Source
http://linux-nfs.org/pipermail/nfsv4/2006-November/005313.html	Broken Link
http://linux-nfs.org/pipermail/nfsv4/2006-November/005323.html	Broken Link
http://secunia.com/advisories/35106	Broken Link
http://secunia.com/advisories/35298	Broken Link
http://secunia.com/advisories/35394	Broken Link
http://secunia.com/advisories/35656	Broken Link
http://secunia.com/advisories/35847	Broken Link
http://secunia.com/advisories/36051	Broken Link
http://secunia.com/advisories/36327	Broken Link
http://secunia.com/advisories/37471	Broken Link
http://wiki.rpath.com/Advisories:rPSA-2009-0111	Broken Link
http://www.securityfocus.com/archive/1/505254/100/0/threaded	Mailing List
http://www.securityfocus.com/archive/1/507985/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/34934	Third Party Advisory
http://www.vupen.com/english/advisories/2009/1331	Broken Link
http://www.vupen.com/english/advisories/2009/3316	Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8543	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9990	Signature

URL	Date	SRC
http://article.gmane.org/gmane.linux.nfs/26592	2024-08-07
http://www.openwall.com/lists/oss-security/2009/05/13/2	2024-08-07
https://bugzilla.redhat.com/show_bug.cgi?id=500297	2024-08-07

URL	Date	SRC
http://bugzilla.linux-nfs.org/show_bug.cgi?id=131	2020-08-21
http://www.vmware.com/security/advisories/VMSA-2009-0016.html	2020-08-21

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html	2020-08-21
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html	2020-08-21
http://www.debian.org/security/2009/dsa-1809	2020-08-21
http://www.debian.org/security/2009/dsa-1844	2020-08-21
http://www.debian.org/security/2009/dsa-1865	2020-08-21
http://www.mandriva.com/security/advisories?name=MDVSA-2009:135	2020-08-21
http://www.mandriva.com/security/advisories?name=MDVSA-2009:148	2020-08-21
http://www.redhat.com/support/errata/RHSA-2009-1157.html	2020-08-21
http://www.ubuntu.com/usn/usn-793-1	2020-08-21
https://access.redhat.com/security/cve/CVE-2009-1630	2009-07-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 2.6.29.3 Search vendor "Linux" for product "Linux Kernel" and version " <= 2.6.29.3"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.0 Search vendor "Opensuse" for product "Opensuse" and version "11.0"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.1 Search vendor "Opensuse" for product "Opensuse" and version "11.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				4.0 Search vendor "Debian" for product "Debian Linux" and version "4.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				5.0 Search vendor "Debian" for product "Debian Linux" and version "5.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				6.06 Search vendor "Canonical" for product "Ubuntu Linux" and version "6.06"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				9.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "9.04"		-		Affected
Vmware Search vendor "Vmware"		Esx Search vendor "Vmware" for product "Esx"				2.5.5 Search vendor "Vmware" for product "Esx" and version "2.5.5"		-		Affected
Vmware Search vendor "Vmware"		Esx Search vendor "Vmware" for product "Esx"				3.0.3 Search vendor "Vmware" for product "Esx" and version "3.0.3"		-		Affected
Vmware Search vendor "Vmware"		Esx Search vendor "Vmware" for product "Esx"				3.5 Search vendor "Vmware" for product "Esx" and version "3.5"		-		Affected
Vmware Search vendor "Vmware"		Esx Search vendor "Vmware" for product "Esx"				4.0 Search vendor "Vmware" for product "Esx" and version "4.0"		-		Affected