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cveMitreCVE-2021-42835
HistoryDec 08, 2021 - 3:15 p.m.

CVE-2021-42835

2021-12-0815:15:10
CWE-367
mitre
web.nvd.nist.gov
24
plex media server
cve-2021-42835
code execution
rpc service
toctou race condition
security vulnerability
nvd

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

49.4%

JSON

An issue was discovered in Plex Media Server through 1.24.4.5081-e362dc1ee. An attacker (with a foothold in a endpoint via a low-privileged user account) can access the exposed RPC service of the update service component. This RPC functionality allows the attacker to interact with the RPC functionality and execute code from a path of his choice (local, or remote via SMB) because of a TOCTOU race condition. This code execution is in the context of the Plex update service (which runs as SYSTEM).

Affected configurations

Nvd
Node
microsoftwindowsMatch-
AND
plexmedia_serverRange<1.25.0.5282
VendorProductVersionCPE
microsoftwindows-cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
plexmedia_server*cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*

Related

nessus 2
freebsd 1
openvas 1
prion 1
cvelist 1
nvd 1
githubexploit 1
nessus
nessus
FreeBSD : Plex Media Server -- security vulnerability (98f78c7a-a08e-11ed-946e-002b67dfc673)
2023-01-30 00:00:00
Plex Media Server < 1.25.0.5282 Privilege Escalation
2021-12-29 00:00:00
freebsd
freebsd
Plex Media Server -- security vulnerability
2021-10-22 00:00:00
openvas
openvas
Plex Media Server < 1.25.0 Privilege Escalation Vulnerability
2021-12-09 00:00:00
prion
prion
Race condition
2021-12-08 15:15:00
cvelist
cvelist
CVE-2021-42835
2021-12-08 14:34:35
nvd
nvd
CVE-2021-42835
2021-12-08 15:15:10
githubexploit
githubexploit
Exploit for Time-of-check Time-of-use (TOCTOU) Race Condition in Plex Media Server
2021-12-02 20:18:08

CVSS2

6.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

49.4%

JSON
Related for CVE-2021-42835
nessus2freebsd1openvas1prion1cvelist1nvd1githubexploit1