Home/CVE/Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecure
CVE

CVE-2021-30119

Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecure

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.

MEDIUM · CVSS 5.4 EPSS 0.0016
Schedule remediation
  • Public exploit or PoC is available
Sigma rules10 YARA rules0
◆

Threat Actors Linked

1
actorREvil
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
kaseya vsa< 9.5.7
⚠

Public Exploits & PoCs

1
poccsirt.divd.nl · CVE-2021-30119csirt.divd.nl
◈

Detection Rules (IDS/IPS)

2
et-openET WEB_SPECIFIC_APPS Kaseya VSA Authenticated Reflected Cross-site Scripting (CVE-2021-30119) M1web-application-attack
et-openET WEB_SPECIFIC_APPS Kaseya VSA Authenticated Reflected Cross-site Scripting (CVE-2021-30119) M2web-application-attack
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

10
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalHacktool Execution - Imphash
relatedcriticalHackTool - Rubeus Execution
relatedcriticalPotential Credential Dumping Via LSASS Process Clone
relatedcriticalWCE wceaux.dll Access
relatedcriticalHackTool - Dumpert Process Dumper Default File
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jul 2021 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/PatchThird Party Advisory
https://csirt.divd.nl/DIVD-2021-00011PatchThird Party Advisory
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