#VU14225 Resource exhaustion in https-proxy-agent - CVE-2018-3739

Vulnerability identifier: #VU14225

Vulnerability risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-3739

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
https-proxy-agent
Web applications / Other software

Vendor: npm Inc.

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition on the target system.

The vulnerability exists due to improper sanitization of the auth option passed to the Buffer() constructor. A remote attacker can submit a malicious input to the auth paramete, consume excessive CPU resources and cause the service to crash or trigger memory leak to gain access to arbitrary data.

Mitigation
Update to version 2.2.0 or later.

Vulnerable software versions

https-proxy-agent: 2.1.1

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External links
https://github.com/TooTallNate/node-https-proxy-agent/commit/1c24219df87524e6ed973127e81f30801d658f0...

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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. However, proof of concept for this vulnerability is available.