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Sid 1-37968

Message

SERVER-WEBAPP Apache HTTP server potential cookie disclosure attempt

Summary

protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values of HTTPOnly cookies via vectors involving a (1) long or (2) malformed header in conjunction with crafted web script.

Impact

CVSS base score 4.3 CVSS impact score 2.9 CVSS exploitability score 8.6 confidentialityImpact PARTIAL integrityImpact NONE availabilityImpact NONE

CVE-2012-0053:

CVSS base score 4.3

CVSS impact score 2.9

CVSS exploitability score 8.6

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Detailed information

CVE-2012-0053: protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values of HTTPOnly cookies via vectors involving a (1) long or (2) malformed header in conjunction with crafted web script.

Affected systems

  • apache http_server 2.2
  • apache http_server 2.2.0
  • apache http_server 2.2.1
  • apache http_server 2.2.2
  • apache http_server 2.2.3
  • apache http_server 2.2.4
  • apache http_server 2.2.6
  • apache http_server 2.2.8
  • apache http_server 2.2.9
  • apache http_server 2.2.10
  • apache http_server 2.2.11
  • apache http_server 2.2.12
  • apache http_server 2.2.13
  • apache http_server 2.2.14
  • apache http_server 2.2.15
  • apache http_server 2.2.16
  • apache http_server 2.2.17
  • apache http_server 2.2.18
  • apache http_server 2.2.19
  • apache http_server 2.2.20
  • apache http_server 2.2.21

Ease of attack

CVE-2012-0053:

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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.

Additional References