7.5
HIGH
CVE-2023-47120
Discourse Redis Memory Depletion Vulnerability
Description

Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.

INFO

Published Date :

Nov. 10, 2023, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 8:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-47120 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 Discourse discourse

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-2023-47120 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-47120 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852
    Added Reference https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce
    Added Reference https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 17, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852 No Types Assigned https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852 Patch
    Changed Reference Type https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce No Types Assigned https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce Patch
    Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3 No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.3 *cpe:2.3:a:discourse:discourse:3.1.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.1.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.1.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.2.0:beta2:*:*:beta:*:*:*
  • CVE Received by [email protected]

    Nov. 10, 2023

    Action Type Old Value New Value
    Added Description Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
    Added Reference GitHub, Inc. https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce [No types assigned]
    Added CWE GitHub, Inc. CWE-770
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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-2023-47120 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.

0.58 }} -0.11%

score

0.66457

percentile

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