#VU80323 Prototype pollution in Tough-cookie - CVE-2023-26136

Vulnerability identifier: #VU80323

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-26136

CWE-ID: CWE-1321

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tough-cookie

Vendor: Salesforce

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Tough-cookie: before 4.1.3

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External links
https://security.snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873
https://github.com/salesforce/tough-cookie/issues/282
https://github.com/salesforce/tough-cookie/commit/12d474791bb856004e858fdb1c47b7608d09cf6e
https://github.com/salesforce/tough-cookie/releases/tag/v4.1.3
https://lists.debian.org/debian-lts-announce/2023/07/msg00010.html

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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?

No. We are not aware of malware exploiting this vulnerability.