CVE-2020-15049
Published: 30 June 2020
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.
Notes
Author | Note |
---|---|
mdeslaur | per upstream, "This attack requires an upstream server to participate in the smuggling and generate the poison response sequence." |
Priority
Status
Package | Release | Status |
---|---|---|
squid Launchpad, Ubuntu, Debian |
hirsute |
Released
(4.12-1ubuntu1)
|
focal |
Released
(4.10-1ubuntu1.3)
|
|
bionic |
Does not exist
|
|
eoan |
Ignored
(end of life)
|
|
groovy |
Released
(4.12-1ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.12)
|
|
xenial |
Does not exist
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch |
||
squid3 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
bionic |
Released
(3.5.27-1ubuntu1.9)
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Released
(3.5.12-1ubuntu7.15)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |