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ubuntucveUbuntu.comUB:CVE-2022-39347
HistoryNov 17, 2022 - 12:00 a.m.

CVE-2022-39347

2022-11-1700:00:00
ubuntu.com
ubuntu.com
16
freerdp
remote desktop protocol
file reading vulnerability
version 2.9.0
upgrade
malicious server
shared directory
drive channel
redirection switch

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

45.3%

FreeRDP is a free remote desktop protocol library and clients. Affected
versions of FreeRDP are missing path canonicalization and base path check
for drive channel. A malicious server can trick a FreeRDP based client to
read files outside the shared directory. This issue has been addressed in
version 2.9.0 and all users are advised to upgrade. Users unable to upgrade
should not use the /drive, /drives or +home-drive redirection switch.

Notes

Author Note
mdeslaur malicious server could read arbitrary files
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfreerdp< anyUNKNOWN
ubuntu16.04noarchfreerdp< anyUNKNOWN
ubuntu18.04noarchfreerdp2< 2.2.0+dfsg1-0ubuntu0.18.04.4UNKNOWN
ubuntu20.04noarchfreerdp2< 2.2.0+dfsg1-0ubuntu0.20.04.4UNKNOWN
ubuntu22.04noarchfreerdp2< 2.6.1+dfsg1-3ubuntu2.3UNKNOWN
ubuntu22.10noarchfreerdp2< 2.8.1+dfsg1-0ubuntu1.1UNKNOWN
ubuntu23.04noarchfreerdp2< 2.8.1+dfsg1-1ubuntu1UNKNOWN
ubuntu23.10noarchfreerdp2< 2.8.1+dfsg1-1ubuntu1UNKNOWN
ubuntu24.04noarchfreerdp2< 2.8.1+dfsg1-1ubuntu1UNKNOWN

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

45.3%