CVE-2021-30116 on CISA KEV

Kaseya VSA before 9.5.7 allows credential disclosure, as exploited in the wild in July 2021. By default Kaseya VSA on premise offers a download page where the clients for the installation can be downloaded. The default URL for this page is https://x.x.x.x/dl.asp When an attacker

01What CISA says about this vulnerability

Kaseya VSA before 9.5.7 allows credential disclosure, as exploited in the wild in July 2021. By default Kaseya VSA on premise offers a download page where the clients for the installation can be downloaded. The default URL for this page is https://x.x.x.x/dl.asp When an attacker download a client for Windows and installs it, the file KaseyaD.ini is generated (C:\Program Files…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• csirt.divd.nl — https://csirt.divd.nl/2021/07/04/Kaseya-Case-Update-2/
• helpdesk.kaseya.com — https://helpdesk.kaseya.com/hc/en-gb/articles/4403440684689-Important-Notice-Jul…
• csirt.divd.nl — https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/
• www.secpod.com — https://www.secpod.com/blog/kaseya-vsa-zero-day-by-revil/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

06Detection

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