High severity · published Jul 23, 2019
CVE-2019-14243
headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a…
7.5
CVSS
4.3%
EPSS
No
On KEV
Description
headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.3% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
Proxyprotocol · Haproxy
before 0.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14243
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14243
Third Party Advisory
https://caddy.community/t/dos-in-http-proxyprotocol-plugin/6014
Issue Tracking
https://github.com/mastercactapus/caddy-proxyprotocol/issues/8
Patch
https://github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f19eef90ac
Third Party Advisory
https://github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101
Exploit
https://github.com/mastercactapus/proxyprotocol/issues/1
Release Notes
https://github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2