#VU21409 Inconsistent interpretation of HTTP requests in Go programming language
Vulnerability identifier: #VU21409
Vulnerability risk: Medium
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-444
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Go programming language
Universal components / Libraries /
Scripting languages
Vendor: Google
Description
The vulnerability allows a remote attacker to perform HTTP request smuggling attack.
The vulnerability exists due to Go programming language accepts and normalizes HTTP requests with malformed HTTP/1.1 headers containing a space before the colon. A remote attacker can use a malformed request to bypass configured filtration and gain access to presumably restricted functionality.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Go programming language: 1.13, 1.12.1 - 1.12.9, 1.11 - 1.11beta3
External links
http://groups.google.com/forum/m/#!topic/golang-announce/cszieYyuL9Q
http://github.com/golang/go/issues/34540
http://github.com/golang/go/commit/5a6ab1ec3e678640befebeb3318b746a64ad986c
http://github.com/golang/go/commit/6e6f4aaf70c8b1cc81e65a26332aa9409de03ad8
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.
