CVE-2019-11323 : HAProxy before 1.9.7 mishandles a reload with rotated keys, which triggers use o

HAProxy before 1.9.7 mishandles a reload with rotated keys, which triggers use of uninitialized, and very predictable, HMAC keys. This is related to an include/types/ssl_sock.h error.

Published 2019-05-09 14:29:00

Updated 2021-07-21 11:39:24

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2019-11323

Haproxy » Haproxy
Versions from including (>=) 1.9.2 and before (<) 1.9.7
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2019-11323

Top countries where our scanners detected CVE-2019-11323

Top open port discovered on systems with this issue 22

IPs affected by CVE-2019-11323 1

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2019-11323!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-11323

EPSS FAQ

0.01%

Probability of exploitation activity in the next 30 days EPSS Score History

~ %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-11323

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.9	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2019-11323

CWE-327 Use of a Broken or Risky Cryptographic Algorithm

The product uses a broken or risky cryptographic algorithm or protocol.

Assigned by: nvd@nist.gov (Primary)
CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-11323

http://git.haproxy.org/?p=haproxy.git;a=commit;h=8ef706502aa2000531d36e4ac56dbdc7c30f718d

Repositories - haproxy.git/commit
Patch;Vendor Advisory
https://www.mail-archive.com/haproxy@formilux.org/msg33410.html

[ANNOUNCE] haproxy-1.9.7
Mailing List;Third Party Advisory