CVE-2017-7657
Published: 26 June 2018
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.
Notes
Author | Note |
---|---|
ebarretto | jetty8 ignored (very hard to exploit, complex patch) |
Priority
Status
Package | Release | Status |
---|---|---|
jetty8 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
mantic |
Does not exist
|
|
noble |
Does not exist
|
|
trusty |
Ignored
|
|
upstream |
Needed
|
|
xenial |
Ignored
|
|
jetty9 Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Needed
|
|
cosmic |
Not vulnerable
(9.2.26-1)
|
|
disco |
Not vulnerable
(9.2.26-1)
|
|
eoan |
Not vulnerable
(9.2.26-1)
|
|
focal |
Not vulnerable
(9.2.26-1)
|
|
groovy |
Not vulnerable
(9.2.26-1)
|
|
hirsute |
Not vulnerable
(9.2.26-1)
|
|
impish |
Not vulnerable
(9.2.26-1)
|
|
jammy |
Not vulnerable
(9.2.26-1)
|
|
kinetic |
Not vulnerable
(9.2.26-1)
|
|
lunar |
Not vulnerable
(9.2.26-1)
|
|
mantic |
Not vulnerable
(9.2.26-1)
|
|
noble |
Not vulnerable
(9.2.26-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(9.2.25-1, 9.2.21-1+deb9u1)
|
|
xenial |
Needed
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |