Rule Category

SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.

Alert Message

SERVER-WEBAPP HTTP request with negative Content-Length attempt

Rule Explanation

Rule checks for an attempt to trigger an integer overflow via the Content-Length header. Impact: Details: Rule checks for an attempt to trigger an integer overflow via a malicious Content-Length header value. Ease of Attack:

What To Look For

This rule will alert when an attempt to exploit a known memory corruption bug in Apache subversion is detected.

Known Usage

No public information

False Positives

No known false positives

Contributors

Talos research team. This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology. For more information see [nvd].

Rule Groups

No rule groups

CVE

Rule Vulnerability

Buffer Overflow

Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2004-0095
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CVE-2006-2162
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CVE-2006-3655
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CVE-2014-9192
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CVE-2017-1000470
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CVE-2005-3653
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CVE-2015-5343
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MITRE ATT&CK Framework

Tactic: Execution

Technique: User Execution

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org