CVE-2014-4943

Linux Kernel 3.15.6 - PPP-over-L2TP Socket Level Handling Crash (PoC)

Severity Score

6.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.

La funcionalidad PPPoL2TP en net/l2tp/l2tp_ppp.c en el kernel de Linux hasta 3.15.6 permite a usuarios locales ganar privilegios mediante el aprovechamiento de diferencias de la estructura de datos entre un socket l2tp y un socket inet.

A flaw was found in the way the pppol2tp_setsockopt() and pppol2tp_getsockopt() functions in the Linux kernel's PPP over L2TP implementation handled requests with a non-SOL_PPPOL2TP socket option level. A local, unprivileged user could use this flaw to escalate their privileges on the system.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-07-11 CVE Reserved
2014-07-17 CVE Published
2015-03-04 First Exploit
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-269: Improper Privilege Management

CAPEC

References (25)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf	Broken Link
http://linux.oracle.com/errata/ELSA-2014-0924.html	Third Party Advisory
http://linux.oracle.com/errata/ELSA-2014-3047.html	Third Party Advisory
http://linux.oracle.com/errata/ELSA-2014-3048.html	Third Party Advisory
http://openwall.com/lists/oss-security/2014/07/17/1	Mailing List
http://osvdb.org/show/osvdb/109277	Broken Link
http://secunia.com/advisories/59790	Third Party Advisory
http://secunia.com/advisories/60011	Third Party Advisory
http://secunia.com/advisories/60071	Third Party Advisory
http://secunia.com/advisories/60220	Third Party Advisory
http://secunia.com/advisories/60380	Third Party Advisory
http://secunia.com/advisories/60393	Third Party Advisory
http://www.securitytracker.com/id/1030610	Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/94665	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/36267	2015-03-04
http://www.exploit-db.com/exploits/36267	2024-08-06

URL	Date	SRC
https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf	2024-01-19

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html	2024-01-19
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html	2024-01-19
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html	2024-01-19
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html	2024-01-19
http://rhn.redhat.com/errata/RHSA-2014-1025.html	2024-01-19
http://www.debian.org/security/2014/dsa-2992	2024-01-19
https://bugzilla.redhat.com/show_bug.cgi?id=1119458	2014-08-06
https://access.redhat.com/security/cve/CVE-2014-4943	2014-08-06

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"				>= 2.6.23 < 3.2.62 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 3.2.62"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.3 < 3.4.102 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.3 < 3.4.102"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.5 < 3.10.52 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.5 < 3.10.52"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 3.12.27 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.12.27"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.13 < 3.14.16 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.14.16"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.15 < 3.15.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 3.15.9"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.4 Search vendor "Opensuse" for product "Opensuse" and version "11.4"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"				11 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "11"		sp3		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp2, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp3		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp3, vmware		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				6.2 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "6.2"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected