CVE-2019-17567

2021-06-1000:00:00

ubuntu.com

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

68.1%

JSON

Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured
on an URL that is not necessarily Upgraded by the origin server was
tunneling the whole connection regardless, thus allowing for subsequent
requests on the same connection to pass through with no HTTP validation,
authentication or authorization possibly configured.

Notes

Author	Note
mdeslaur	The patches required to fix this in stable releases are quite intrusive and change behaviour. It may not make sense to backport them to stable releases.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchapache2< anyUNKNOWN
ubuntu20.04noarchapache2< anyUNKNOWN
ubuntu14.04noarchapache2< anyUNKNOWN
ubuntu16.04noarchapache2< anyUNKNOWN