QID 376566

Date Published: 2022-04-27

QID 376566: F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) Eclipse Jetty Vulnerability (K21054458)

In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), HTTP/0.9 is handled poorly. An HTTP/1 style request line (i.e. method space URI space version) that declares a version of HTTP/0.9 was accepted and treated as a 0.9 request. If deployed behind an intermediary that also accepted and passed through the 0.9 version (but did not act on it), then the response sent could be interpreted by the intermediary as HTTP/1 headers. This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response. (CVE-2017-7656)

Vulnerable Component: BIG-IP ASM,LTM,APM

Affected Versions:
16.1.0 - 16.1.2
15.1.0 - 15.1.5
14.1.0 - 14.1.4

QID Detection Logic(Authenticated):
This QID checks for the vulnerable versions of F5 BIG-IP devices using the tmsh command.

Privilege escalation is possible, as the pipelined request would bypass the authorization.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

For more information about patch details please refer to K21054458Workaround:
To mitigate against the vulnerability apply the following mitigations:
1. Block iControl REST access through the self IP address
2. Block iControl REST access through the management interface

Vendor References

K21054458 - support.f5.com/csp/article/K21054458

CVEs related to QID 376566

CVE-2017-7656 |

Software Advisories

Advisory ID	Software	Component	Link

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