Multiple vulnerabilities in Go

Published: 2017-10-18 | Updated: 2019-10-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2015-5739 CVE-2015-5740
CWE-ID	CWE-444
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Go programming language Universal components / Libraries / Scripting languages
Vendor	Google

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU21783

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-5739

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct an HTTP request smuggling attack on the target system.

The vulnerability exists due to the "net/http" library in "net/textproto/reader.go" does not properly parse HTTP header keys. A remote attacker can send a specially crafted HTTP request and conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by "Content Length" instead of "Content-Length."

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1 - 1.4.2

External links

http://github.com/golang/go/commit/117ddcb83d7f42d6aa72241240af99ded81118e9

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.

2) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU21784