Linux Kernel 2.4.35/2.6.22.6 ptrace access control

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 2.4.35/2.6.22.6. Affected by this vulnerability is an unknown functionality of the component ptrace. Performing a manipulation results in access control. This vulnerability was named CVE-2007-4573. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 2.4.35/2.6.22.6 (Operating System). This affects an unknown functionality of the component ptrace. 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 confidentiality, integrity, and availability. The summary by CVE is:

The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.

The bug was discovered 09/21/2007. The weakness was presented 09/24/2007 by Wojciech Purczynski (Website). The advisory is shared at kernel.org. This vulnerability is uniquely identified as CVE-2007-4573 since 08/28/2007. The attack can only be done within the local network. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After 2 days, there has been an exploit disclosed. The exploit is shared for download at securiteam.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 67579 (Oracle Linux 3 : kernel (ELSA-2007-0938)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157333 (Oracle Enterprise Linux Security Update for Linux 4 kernel (ELSA-2007-0937)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 4 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (36787), Exploit-DB (30604), Tenable (67579), SecurityFocus (BID 25774†) and OSVDB (37287†). See VDB-38265, VDB-38037, VDB-38779 and VDB-38313 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67579
Nessus Name: Oracle Linux 3 : kernel (ELSA-2007-0938)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58636
OpenVAS Name: Debian Security Advisory DSA 1378-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: kernel.org

Timelineinfo

08/28/2007 🔍
09/21/2007 +24 days 🔍
09/21/2007 +0 days 🔍
09/21/2007 +0 days 🔍
09/24/2007 +3 days 🔍
09/24/2007 +0 days 🔍
09/25/2007 +1 days 🔍
09/26/2007 +0 days 🔍
09/27/2007 +1 days 🔍
09/28/2007 +1 days 🔍
10/01/2007 +3 days 🔍
10/07/2007 +6 days 🔍
09/23/2010 +1082 days 🔍
07/12/2013 +1023 days 🔍
12/31/2024 +4190 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Wojciech Purczynski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4573 (🔍)
GCVE (CVE): GCVE-0-2007-4573
GCVE (VulDB): GCVE-100-3333

OVAL: 🔍

X-Force: 36787
SecurityFocus: 25774 - Linux Kernel Ptrace Local Privilege Escalation Vulnerability
Secunia: 26995
OSVDB: 37287 - Linux Kernel on x86_64 IA32 System Call Emulation %RAX Register Local Privilege Escalation
SecurityTracker: 1018748
Vulnerability Center: 16269 - Linux Kernel IA32 System Vulnerability Allows Arbitrary Code Execution with System Privileges, High
Vupen: ADV-2007-3246

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

Entryinfo

Created: 10/01/2007 15:25
Updated: 12/31/2024 14:42
Changes: 10/01/2007 15:25 (104), 07/27/2019 09:54 (1), 12/31/2024 14:42 (17)
Complete: 🔍
Cache ID: 216:8B5:103

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

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