Apache HTTP Server 2.2.3 race condition

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Apache HTTP Server 2.2.3 (Web Server). Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation, and their usage, allow local users to gain privileges and execute arbitrary code by renaming directories or performing symlink attacks. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root."

The weakness was shared 04/11/2007 (Website). The advisory is shared for download at labs.idefense.com. This vulnerability is handled as CVE-2007-1741. The exploitation is known to be difficult. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/14/2021).

The vulnerability scanner Nessus provides a plugin with the ID 17693 (Apache mod_suexec Multiple Privilege Escalation Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers.

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 (33584) and Tenable (17693). The entry VDB-36165 is related to this item.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍


VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.3
VulDB Temp Score: 9.3
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Race condition
CWE: CWE-362

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 17693
Nessus Name: Apache mod_suexec Multiple Privilege Escalation Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


03/28/2007 🔍
04/11/2007 +14 days 🔍
04/11/2007 +0 days 🔍
04/13/2007 +1 days 🔍
04/13/2007 +0 days 🔍
10/07/2007 +177 days 🔍
09/08/2009 +701 days 🔍
11/18/2011 +801 days 🔍
03/13/2015 +1211 days 🔍
07/14/2021 +2315 days 🔍


Vendor: apache.org

Advisory: labs.idefense.com
Status: Not defined

CVE: CVE-2007-1741 (🔍)
X-Force: 33584
Vulnerability Center: 23439 - Apache HTTP Server 2.2.3 suexec Multiple Race Conditions Allow Local Privilege Escalation, High
SecurityFocus: 23438 - Apache HTTPD suEXEC Local Multiple Privilege Escalation Weaknesses
OSVDB: 38639 - Apache HTTP Server suexec Multiple Symlink Privilege Escalation

See also: 🔍


Created: 03/13/2015 02:56 PM
Updated: 07/14/2021 09:57 AM
Changes: 03/13/2015 02:56 PM (56), 02/14/2017 04:26 PM (9), 07/14/2021 09:53 AM (3), 07/14/2021 09:57 AM (1)
Complete: 🔍
Cache ID: 44:A05:40


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