Apache HTTP Server up to 2.2.13 mod_proxy_ajp resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $5k-$25k | 0.00 |
A vulnerability was found in Apache HTTP Server up to 2.2.13 (Web Server). It has been rated as problematic. This issue affects an unknown code block of the component mod_proxy_ajp. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:
The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 through 2.2.21 places a worker node into an error state upon detection of a long request-processing time, which allows remote attackers to cause a denial of service (worker consumption) via an expensive request.
The weakness was shared 11/30/2012 (Website). The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2012-4557 since 08/21/2012. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/20/2021).
The vulnerability scanner Nessus provides a plugin with the ID 63114 (Debian DSA-2579-1 : apache2 - Multiple issues), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185021 (HP-UX Running Apache Multiple Vulnerabilities (HPSBUX02866)).
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 (80027) and Tenable (63114). The entries 7073, 7074, 7075 and 62933 are related to this item.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 63114
Nessus Name: Debian DSA-2579-1 : apache2 - Multiple issues
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 72626
OpenVAS Name: Debian Security Advisory DSA 2579-1 (apache2)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/05/2011 🔍08/21/2012 🔍
10/30/2012 🔍
11/30/2012 🔍
11/30/2012 🔍
12/02/2012 🔍
12/02/2012 🔍
03/24/2015 🔍
12/20/2021 🔍
Sources
Vendor: apache.orgAdvisory: DSA-2579
Status: Not defined
Confirmation: 🔍
CVE: CVE-2012-4557 (🔍)
OVAL: 🔍
X-Force: 80027
Vulnerability Center: 37463 - Apache 2.2.12-2.2.21 Remote Denial of Service via an Expensive Request, High
SecurityFocus: 56753 - Apache Apache HTTP Server 'mod_proxy_ajp Module Denial Of Service Vulnerability
See also: 🔍
Entry
Created: 03/24/2015 12:22Updated: 12/20/2021 14:52
Changes: 03/24/2015 12:22 (69), 04/22/2017 09:10 (4), 12/20/2021 14:49 (3), 12/20/2021 14:51 (1), 12/20/2021 14:52 (2)
Complete: 🔍
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