Linux Kernel 3.4.70/3.10.20/3.11.10/3.12.1 trace_event_perf.c perf_trace_event_perm access control
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.9 | $0-$5k | 0.00 |
Summary
A vulnerability marked as problematic has been reported in Linux Kernel 3.4.70/3.10.20/3.11.10/3.12.1. This affects the function perf_trace_event_perm of the file kernel/trace/trace_event_perf.c. This manipulation causes access control.
This vulnerability is registered as CVE-2013-2930. No exploit is available.
It is suggested to upgrade the affected component.
Details
A vulnerability was found in Linux Kernel 3.4.70/3.10.20/3.11.10/3.12.1 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function perf_trace_event_perm of the file kernel/trace/trace_event_perf.c. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:
The perf_trace_event_perm function in kernel/trace/trace_event_perf.c in the Linux kernel before 3.12.2 does not properly restrict access to the perf subsystem, which allows local users to enable function tracing via a crafted application.
The weakness was published 11/06/2013 by Dave Jones and Vince Weaver as perf/ftrace: Fix paranoid level for enabling function tracer as confirmed git commit (GIT Repository). The advisory is shared at git.kernel.org. The public release has been coordinated with Linux. This vulnerability is known as CVE-2013-2930 since 04/11/2013. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.
The vulnerability scanner Nessus provides a plugin with the ID 71797 (Ubuntu 12.10 : linux vulnerabilities (USN-2071-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195833 (Ubuntu Security Notification for Linux-lts-saucy Vulnerabilities (USN-2070-1)).
Upgrading to version 3.4.71, 3.10.21, 3.11.10 or 3.12.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (89832), Tenable (71797), SecurityFocus (BID 62740†), OSVDB (100506†) and Vulnerability Center (SBV-42698†). Similar entries are available at VDB-10574, VDB-11315, VDB-11317 and VDB-11491. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
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 |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| 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
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
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: 71797
Nessus Name: Ubuntu 12.10 : linux vulnerabilities (USN-2071-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 841671
OpenVAS Name: Ubuntu Update for linux-lts-quantal USN-2068-1
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Kernel 3.4.71/3.10.21/3.11.10/3.12.2
Patch: git.kernel.org
Timeline
04/11/2013 🔍09/13/2013 🔍
11/06/2013 🔍
11/06/2013 🔍
11/06/2013 🔍
12/05/2013 🔍
12/09/2013 🔍
12/23/2013 🔍
01/05/2014 🔍
06/02/2021 🔍
Sources
Vendor: kernel.orgAdvisory: perf/ftrace: Fix paranoid level for enabling function tracer
Researcher: Dave Jones, Vince Weaver
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2013-2930 (🔍)
GCVE (CVE): GCVE-0-2013-2930
GCVE (VulDB): GCVE-100-11365
OVAL: 🔍
X-Force: 89832
SecurityFocus: 62740
OSVDB: 100506
Vulnerability Center: 42698 - Linux kernel before 3.12.2 Local Security Bypass Vulnerability via a Crafted Application, Low
See also: 🔍
Entry
Created: 12/05/2013 09:36Updated: 06/02/2021 15:48
Changes: 12/05/2013 09:36 (80), 05/18/2017 17:15 (2), 06/02/2021 15:42 (4), 06/02/2021 15:48 (1)
Complete: 🔍
Committer: olku
Cache ID: 216:8F8:103
No comments yet. Languages: en.
Please log in to comment.