#VU99580 Cross-site scripting in Consul and Consul Enterprise - CVE-2024-10086

Vulnerability identifier: #VU99580

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-10086

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Consul
Server applications / Other server solutions
Consul Enterprise
Server applications / Other server solutions

Vendor: HashiCorp

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to the application does not explicitly set set Content-Type HTTP header. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Consul: 1.4.1 - 1.4.5, 1.5.0 - 1.5.3, 1.6.0 - 1.6.10, 1.7.0 - 1.7.14, 1.8.0 - 1.8.19, 1.9.0 - 1.9.17, 1.10.0 - 1.19.2

Consul Enterprise: 1.4.1 - 1.4.5, 1.5.0 - 1.5.3, 1.6.0 - 1.6.10, 1.7.0 - 1.7.14, 1.8.0 - 1.8.19, 1.9.0 - 1.9.17, 1.10.0 - 1.19.2

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External links
https://discuss.hashicorp.com/t/hcsec-2024-24-consul-vulnerable-to-reflected-xss-on-content-type-error-manipulation
https://github.com/advisories/GHSA-99wr-c2px-grmh

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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.