Rapid7 Vulnerability & Exploit Database

Apache HTTPD: ap_find_token() Buffer Overread (CVE-2017-7668)

Back to Search

Apache HTTPD: ap_find_token() Buffer Overread (CVE-2017-7668)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
06/20/2017
Created
07/25/2018
Added
06/20/2017
Modified
01/08/2018

Description

The HTTP strict parsing changes added in 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.

Solution(s)

  • apache-httpd-upgrade-2_2_34
  • apache-httpd-upgrade-2_4_26

References

  • apache-httpd-upgrade-2_2_34
  • apache-httpd-upgrade-2_4_26

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;