5.9
MEDIUM
CVE-2019-11323
HAProxy SSL HMAC Key Prediction Vulnerability
Description

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.

INFO

Published Date :

May 9, 2019, 2:29 p.m.

Last Modified :

Nov. 7, 2023, 3:02 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2019-11323 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Haproxy haproxy
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-11323.

URL Resource
http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=8ef706502aa2000531d36e4ac56dbdc7c30f718d
https://www.mail-archive.com/haproxy%40formilux.org/msg33410.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-11323 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-11323 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=8ef706502aa2000531d36e4ac56dbdc7c30f718d [No types assigned]
    Added Reference MITRE https://www.mail-archive.com/haproxy%40formilux.org/msg33410.html [No types assigned]
    Removed Reference MITRE https://www.mail-archive.com/[email protected]/msg33410.html
    Removed Reference MITRE http://git.haproxy.org/?p=haproxy.git;a=commit;h=8ef706502aa2000531d36e4ac56dbdc7c30f718d
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-327 CWE-327 CWE-908
  • Reanalysis by [email protected]

    May. 19, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    Removed CWE NIST CWE-310
    Added CWE NIST CWE-327
    Changed CPE Configuration OR *cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.7 OR *cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* versions from (including) 1.9.2 up to (excluding) 1.9.7
  • Initial Analysis by [email protected]

    May. 10, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://git.haproxy.org/?p=haproxy.git;a=commit;h=8ef706502aa2000531d36e4ac56dbdc7c30f718d No Types Assigned http://git.haproxy.org/?p=haproxy.git;a=commit;h=8ef706502aa2000531d36e4ac56dbdc7c30f718d Patch, Vendor Advisory
    Changed Reference Type https://www.mail-archive.com/[email protected]/msg33410.html No Types Assigned https://www.mail-archive.com/[email protected]/msg33410.html Mailing List, Third Party Advisory
    Added CWE CWE-310
    Added CPE Configuration OR *cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* versions up to (excluding) 1.9.7
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-11323 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} 0.00%

score

0.53128

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability