SARA / Free Tools / KEV / CVE-2024-4978

CVE-2024-4978 on CISA KEV

Justice AV Solutions Viewer Setup 8.3.7.250-1 contains a malicious binary when executed and is signed with an unexpected authenticode signature. A remote, privileged threat actor may exploit this vulnerability to execute of unauthorized PowerShell commands.

CISA KEV — Actively Exploited

Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability

Vendor / Product
— / Justice AV Solutions / Viewer
Added to KEV
2024-05-29
BOD 22-01 due
2024-06-19
Ransomware use
Unknown
CVSS / EPSS
8.7 HIGH · EPSS 14.15%

01What CISA says about this vulnerability

Justice AV Solutions Viewer Setup 8.3.7.250-1 contains a malicious binary when executed and is signed with an unexpected authenticode signature. A remote, privileged threat actor may exploit this vulnerability to execute of unauthorized PowerShell commands.

02Required action — verbatim from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

03Notes & references

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)

VendorProductVersions
Justice AV SolutionsViewer8.3.7.250

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

Open in Sigma generator →

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