CVE-2017-7657

HIGH

Description

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.

References

http://www.securitytracker.com/id/1041194

https://access.redhat.com/errata/RHSA-2019:0910

https://bugs.eclipse.org/bugs/show_bug.cgi?id=535668

https://lists.apache.org/thread.html/[email protected]%3Cissues.activemq.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Csolr-user.lucene.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.druid.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E

https://security.netapp.com/advisory/ntap-20181014-0001/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03953en_us

https://www.debian.org/security/2018/dsa-4278

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Details

Source: MITRE

Published: 2018-06-26

Updated: 2020-07-29

Type: CWE-190

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL