Rocket.Chat up to 5.2.0 E2E Encryption inadequate encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Rocket.Chat. It has been classified as problematic. Affected is an unknown function of the component E2E Encryption. The manipulation leads to inadequate encryption. This vulnerability is referenced as CVE-2023-23911. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Rocket.Chat (Chat Software). This issue affects an unknown code block of the component E2E Encryption. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality. The summary by CVE is:

An improper access control vulnerability exists prior to v6 that could allow an attacker to break the E2E encryption of a chat room by a user changing the group key of a chat room.

The weakness was published 03/11/2023. It is possible to read the advisory at hackerone.com. The identification of this vulnerability is CVE-2023-23911 since 01/19/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

Upgrading to version 6 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-27994). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.5

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Inadequate encryption
CWE: CWE-326 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Rocket.Chat 6

Timelineinfo

01/19/2023 🔍
03/11/2023 +51 days 🔍
03/11/2023 +0 days 🔍
10/14/2025 +948 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed

CVE: CVE-2023-23911 (🔍)
GCVE (CVE): GCVE-0-2023-23911
GCVE (VulDB): GCVE-100-222815
EUVD: 🔍

Entryinfo

Created: 03/11/2023 08:41
Updated: 10/14/2025 18:18
Changes: 03/11/2023 08:41 (39), 10/14/2025 18:18 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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