8.7

CVE-2021-42083

An authenticated attacker is able to create alerts that trigger a stored XSS attack.

POC


  *  go to the alert manager


  *  open the ITSM tab
  *  add a webhook with the URL/service token value 

'	-h	&&	id	|	tee	/tmp/ttttttddddssss	#' (whitespaces are tab characters)


  *  click add


  *  click apply


  *  create a test alert


  *  The test alert will run the command 

“id	|	tee	/tmp/ttttttddddssss” as root.


  *  after the test alert inspect 

/tmp/ttttttddddssss it'll contain the ids of the root user.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Osnexus ≫ Quantastor Version < 6.0.0.355
   Linux ≫ Linux Kernel Version-
   Microsoft ≫ Windows Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.311
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
csirt@divd.nl 8.7 2.3 5.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://www.wbsec.nl/osnexus
Third Party Advisory