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), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.
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Affected Vendors & Products
References
History
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MITRE
Status: PUBLISHED
Assigner: eclipse
Published: 2018-06-26T16:00:00
Updated: 2024-08-05T16:12:27.850Z
Reserved: 2017-04-11T00:00:00
Link: CVE-2017-7657
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-06-26T16:29:00.257
Modified: 2024-11-21T03:32:23.613
Link: CVE-2017-7657
Redhat