Linux Kernel up to 2.6.5 process.c ioperm privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 2.6.5. Affected by this vulnerability is the function ioperm of the file process.c. This manipulation causes privileges management. The identification of this vulnerability is CVE-2004-2536. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 2.6.5 (Operating System). Affected by this vulnerability is the function ioperm of the file process.c. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The exit_thread function (process.c) in Linux kernel 2.6 through 2.6.5 does not invalidate the per-TSS io_bitmap pointers if a process obtains IO access permissions from the ioperm function but does not drop those permissions when it exits, which allows other processes to access the per-TSS pointers, access restricted memory locations, and possibly gain privileges.

The issue has been introduced in 12/18/2003. The weakness was shared 05/07/2004 by Stas Sergeev (Website). It is possible to read the advisory at ussg.iu.edu. This vulnerability is known as CVE-2004-2536 since 10/25/2005. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 141 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (16106), SecurityFocus (BID 10302†), OSVDB (5997†) and Secunia (SA11577†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/18/2003 🔍
05/07/2004 +141 days 🔍
05/07/2004 +0 days 🔍
05/07/2004 +0 days 🔍
05/10/2004 +2 days 🔍
05/10/2004 +0 days 🔍
12/31/2004 +234 days 🔍
10/25/2005 +298 days 🔍
03/09/2015 +3422 days 🔍
04/13/2019 +1496 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: ussg.iu.edu
Researcher: Stas Sergeev
Status: Not defined
Confirmation: 🔍

CVE: CVE-2004-2536 (🔍)
GCVE (CVE): GCVE-0-2004-2536
GCVE (VulDB): GCVE-100-23419
X-Force: 16106
SecurityFocus: 10302 - Linux Kernel Local IO Access Inheritance Vulnerability
Secunia: 11577 - Linux Kernel IO Bitmap Access Permissions Inheritance Vulnerability, Not Critical
OSVDB: 5997 - Linux Kernel IO Bitmap Access Permissions Inheritance

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/09/2015 16:55
Updated: 04/13/2019 17:23
Changes: 03/09/2015 16:55 (58), 04/13/2019 17:23 (8)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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