ModSecurity < 2.5.9 Multipart Request Header Name DoS

High Nessus Network Monitor Plugin ID 6989


The remote web application firewall may be affected by a denial of service vulnerability


According to its banner, the version of ModSecurity installed on the remote host is earlier than 2.5.9. It is, therefore, potentially affected by a denial of service vulnerability. An error exists related to multipart form HTTP POST requests with a missing part header name that could allow an attacker to crash the application.


Upgrade to ModSecurity version 2.5.9 or later.

See Also

Plugin Details

Severity: High

ID: 6989

Family: Web Servers

Published: 2013/08/16

Modified: 2018/09/16

Dependencies: 1442

Nessus ID: 67125

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 7


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:modsecurity:modsecurity

Patch Publication Date: 2009/03/05

Vulnerability Publication Date: 2009/03/11

Reference Information

CVE: CVE-2009-1902

BID: 34096