Vulnerability CVE-2019-14809
Published: 2019-08-13

Description:
net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Golang -> GO 
Debian -> Debian linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html
https://github.com/golang/go/issues/29098
https://groups.google.com/forum/#!topic/golang-announce/0uuMm1BwpHE
https://groups.google.com/forum/#!topic/golang-announce/65QixT3tcmg
https://seclists.org/bugtraq/2019/Aug/31
https://www.debian.org/security/2019/dsa-4503
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