CVE-2009-1527

Linux Kernel 2.6.x (Gentoo 2.6.29rc1) - 'ptrace_attach' Local Privilege Escalation

Severity Score

7.0

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in the ptrace_attach function in kernel/ptrace.c in the Linux kernel before 2.6.30-rc4 allows local users to gain privileges via a PTRACE_ATTACH ptrace call during an exec system call that is launching a setuid application, related to locking an incorrect cred_exec_mutex object.

Condición de carrera en la función ptrace_attach en kernel/ptrace.c en el kernel de Linux anterior a 2.6.40-rc4 permite a usuarios locales conseguir privilegios a través de la llamada PTRACE_ATTACH ptrace durante una ejecución de sistema que esta lanzando una aplicacion setuid, relacionada con el incorrecto bloqueo del objeto cred_exec_mutex.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-05-05 CVE Reserved
2009-05-05 CVE Published
2009-05-13 First Exploit
2024-08-07 CVE Updated
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (12)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb	X_refsource_confirm
http://secunia.com/advisories/34977	Broken Link
http://secunia.com/advisories/35120	Broken Link
http://wiki.rpath.com/Advisories:rPSA-2009-0084	Broken Link
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4	Broken Link
http://www.openwall.com/lists/oss-security/2009/05/04/2	Mailing List
http://www.osvdb.org/54188	Broken Link
http://www.securityfocus.com/archive/1/503610/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/34799	Third Party Advisory
http://www.vupen.com/english/advisories/2009/1236	Not Applicable
https://exchange.xforce.ibmcloud.com/vulnerabilities/50293	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/8673	2009-05-13

URL	Date	SRC

URL	Date	SRC

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 Search vendor "Linux" for product "Linux Kernel" and version " <= 2.6.29"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.30 Search vendor "Linux" for product "Linux Kernel" and version "2.6.30"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.30 Search vendor "Linux" for product "Linux Kernel" and version "2.6.30"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.30 Search vendor "Linux" for product "Linux Kernel" and version "2.6.30"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.30 Search vendor "Linux" for product "Linux Kernel" and version "2.6.30"		rc3		Affected