Medium severity · published Jul 9, 2021
CVE-2021-30119
Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecurely returned in the requested web page and can be used to…
5.4
CVSS
58.8%
EPSS
No
On KEV
Description
Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecurely returned in the requested web page and can be used to perform a Cross Site Scripting attack Example request: `https://x.x.x.x/HelpDeskTab/rcResults.asp?result=<script>alert(document.cookie)</script>` The same is true for the parameter FileName of /done.asp Eaxmple request: `https://x.x.x.x/done.asp?FileName=";</script><script>alert(1);a="&PathData=&originalName=shell.aspx&FileSize=4388&TimeElapsed=00:00:00.078`
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)58.8% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VS
Vsa · Kaseya
before 9.5.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30119
Patch
https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/
Exploit
https://csirt.divd.nl/CVE-2021-30119
Patch
https://csirt.divd.nl/DIVD-2021-00011
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