#VU84436 Embedded malicious code (backdoor) in connect-kit

Vulnerability identifier: #VU84436

Vulnerability risk: High

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-506

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
connect-kit
Web applications / JS libraries

Vendor: Ledger SAS

Description

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) that allows a remote attacker to drain crypto assets from users' wallets.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

connect-kit: 1.1.5 - 1.1.7

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External links
https://twitter.com/Ledger/status/1735298142118072512
https://twitter.com/MetaMask/status/1735291650614653364?s=20
https://twitter.com/blockaid_/status/1735275569586090221
https://twitter.com/Ledger/status/1735291427100455293

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.