CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.9 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel 2.6.9 (Operating System). It has been classified as problematic. Affected is an unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity, and availability. CVE summarizes:
drivers/acpi/debugfs.c in the Linux kernel before 3.0 allows local users to modify arbitrary kernel memory locations by leveraging root privileges to write to the /sys/kernel/debug/acpi/custom_method file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4347.
The issue has been introduced in 10/19/2004. The weakness was disclosed 06/21/2012 (Website). The advisory is available at github.com. This vulnerability is traded as CVE-2011-1021 since 02/14/2011. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The vulnerability was handled as a non-public zero-day exploit for at least 2519 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 76634 (RHEL 6 : MRG (RHSA-2011:1253)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l.
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (76634). The entries 4433, 6033, 6034 and 56206 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.1VulDB Meta Temp Score: 4.9
VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 76634
Nessus Name: RHEL 6 : MRG (RHSA-2011:1253)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Patch: 526b4af47f44148c9d665e57723ed9f86634c6e3
Timeline
10/19/2004 🔍02/14/2011 🔍
09/12/2011 🔍
06/21/2012 🔍
06/21/2012 🔍
07/22/2014 🔍
03/23/2015 🔍
12/05/2021 🔍
Sources
Vendor: kernel.orgAdvisory: RHSA-2011:1253
Status: Not defined
Confirmation: 🔍
CVE: CVE-2011-1021 (🔍)
SecurityFocus: 45004
See also: 🔍
Entry
Created: 03/23/2015 16:50Updated: 12/05/2021 08:36
Changes: 03/23/2015 16:50 (57), 04/14/2019 12:48 (3), 12/05/2021 08:35 (5), 12/05/2021 08:36 (1)
Complete: 🔍
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