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GHSA-3cvr-822r-rqcc

MediumCVSS 5.3 / 10
Published Jul 21, 2022·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

It is possible to inject CRLF sequences into request headers in Undici.

const undici = require('undici')

const response = undici.request("http://127.0.0.1:1000", {
  headers: {'a': "\r\nb"}
})

The same applies to path and method

Patches

Update to v5.8.0

Workarounds

Sanitize all HTTP headers from untrusted sources to eliminate \r\n.

References

https://hackerone.com/reports/409943 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12116

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the integrity of the data.

Threat Intelligence
4.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
1.39%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Medium severity
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