Known exploited vulnerability
CVE-2024-4978
The short answer
CVE-2024-4978 affects Justice AV Solutions Viewer and is rated high (CVSS 8.7). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-05-29: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-506.
Severity
8.7 high
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Exploited (CISA KEV)
Yes, since May 29, 2024
Federal due date Jun 19, 2024
EPSS, next 30 days
27%
Higher than 98% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- Present
- Privileges required
- High
- User interaction
- Active
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
Viewer, viewer. NVD's record lists the exact affected versions.
References
- twitter.com/2RunJack2/status/1775052981966377148 Third Party Advisory
- www.javs.com/downloads/ Broken LinkProduct
- www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ ExploitThird Party Advisory
- twitter.com/2RunJack2/status/1775052981966377148 Third Party Advisory
- www.javs.com/downloads/ Broken LinkProduct
- www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4978 US Government Resource
Questions
Is CVE-2024-4978 being exploited?
Yes. CISA added CVE-2024-4978 to its Known Exploited Vulnerabilities catalog on 2024-05-29, with a federal remediation due date of 2024-06-19.
How do I fix CVE-2024-4978?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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Everything CISA lists as exploited for Justice AV Solutions.
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