Grsecurity Kernel Patch 1.9.4 Memory /dev/mem privileges management

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Grsecurity Kernel Patch 1.9.4. Affected is an unknown function of the file /dev/mem of the component Memory Handler. The manipulation leads to privileges management. This vulnerability is traded as CVE-2002-1826. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Grsecurity Kernel Patch 1.9.4. This issue affects some unknown functionality of the file /dev/mem of the component Memory Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

grsecurity 1.9.4 for Linux kernel 2.4.18 allows local users to bypass read-only permissions by using mmap to directly map /dev/mem or /dev/kmem to kernel memory.

The weakness was shared 12/31/2002 (Website). The advisory is shared at online.securityfocus.com. The identification of this vulnerability is CVE-2002-1826 since 06/29/2005. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is available at securityfocus.com. It is declared as proof-of-concept.

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 (9109), Exploit-DB (21458) and SecurityFocus (BID 4762†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.9
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/17/2002 🔍
12/31/2002 +228 days 🔍
12/31/2002 +0 days 🔍
06/29/2005 +911 days 🔍
08/04/2014 +3323 days 🔍
11/22/2024 +3763 days 🔍

Sourcesinfo

Advisory: online.securityfocus.com⛔
Status: Not defined

CVE: CVE-2002-1826 (🔍)
GCVE (CVE): GCVE-0-2002-1826
GCVE (VulDB): GCVE-100-19469
X-Force: 9109
SecurityFocus: 4762 - GRSecurity Linux Kernel Memory Protection Weakness

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

Entryinfo

Created: 08/04/2014 17:09
Updated: 11/22/2024 08:55
Changes: 08/04/2014 17:09 (53), 04/19/2019 16:26 (1), 07/04/2024 08:43 (17), 11/22/2024 08:55 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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