Known Exploited Vulnerability
8.4
HIGH
CVE-2024-4978
Justice AV Solutions (JAVS) Viewer Installer Embed - [Actively Exploited]
Description

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.

INFO

Published Date :

May 23, 2024, 2:15 a.m.

Last Modified :

May 31, 2024, 4:03 p.m.

Source :

9119a7d8-5eab-497f-8521-727c672e3725

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

1.7
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Justice AV Solutions (JAVS) Viewer installer contains a malicious version of ffmpeg.exe, named fffmpeg.exe (SHA256: 421a4ad2615941b177b6ec4ab5e239c14e62af2ab07c6df1741e2a62223223c4). When run, this creates a backdoor connection to a malicious C2 server.

Required Action :

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

Notes :

Please follow the vendor’s instructions as outlined in the public statements at https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack#remediation and https://www.javs.com/downloads

Affected Products

The following products are affected by CVE-2024-4978 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Javs javs_viewer
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-4978.

URL Resource
https://twitter.com/2RunJack2/status/1775052981966377148 Press/Media Coverage Third Party Advisory
https://www.javs.com/downloads/ Vendor Advisory
https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-4978 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-4978 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 9119a7d8-5eab-497f-8521-727c672e3725

    Jun. 04, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 31, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
    Changed Reference Type https://twitter.com/2RunJack2/status/1775052981966377148 No Types Assigned https://twitter.com/2RunJack2/status/1775052981966377148 Press/Media Coverage, Third Party Advisory
    Changed Reference Type https://www.javs.com/downloads/ No Types Assigned https://www.javs.com/downloads/ Vendor Advisory
    Changed Reference Type https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ No Types Assigned https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ Exploit, Third Party Advisory
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:a:javs:javs_viewer:8.3.7.250:*:*:*:*:*:*:*
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    May. 30, 2024

    Action Type Old Value New Value
    Added Date Added 2024-05-29
    Added Vulnerability Name Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Due Date 2024-06-19
  • CVE Modified by 9119a7d8-5eab-497f-8521-727c672e3725

    May. 29, 2024

    Action Type Old Value New Value
    Added Reference Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government https://www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack/ [No types assigned]
    Added Reference Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government https://www.javs.com/downloads/ [No types assigned]
  • CVE Modified by 9119a7d8-5eab-497f-8521-727c672e3725

    May. 24, 2024

    Action Type Old Value New Value
    Added CWE Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government CWE-506
    Removed CWE Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government CWE-502
  • CVE Received by 9119a7d8-5eab-497f-8521-727c672e3725

    May. 23, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government https://twitter.com/2RunJack2/status/1775052981966377148 [No types assigned]
    Added CWE Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government CWE-502
    Added CVSS V3.1 Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
    Added CVSS V4.0 Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government 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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-4978 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-4978 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability