Critical severity · published Aug 13, 2019
CVE-2019-14809
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
9.8
CVSS
8.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.4% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
GO
GO · Golang
before 1.11.13; 1.12.0 before 1.12.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14809
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.html
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:3433
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