CVE-2023-26154

Description

Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubnub before 6.19.0; all versions of the package github.com/pubnub/go; versions of the package github.com/pubnub/go/v7 before 7.2.0; versions of the package pubnub before 7.3.0; versions of the package pubnub/pubnub before 6.1.0; versions of the package pubnub before 5.3.0; versions of the package pubnub before 0.4.0; versions of the package pubnub/c-core before 4.5.0; versions of the package com.pubnub:pubnub-kotlin before 7.7.0; versions of the package pubnub/swift before 6.2.0; versions of the package pubnub before 5.2.0; versions of the package pubnub before 4.3.0 are vulnerable to Insufficient Entropy via the getKey function, due to inefficient implementation of the AES-256-CBC cryptographic algorithm. The provided encrypt function is less secure when hex encoding and trimming are applied, leaving half of the bits in the key always the same for every encoded message or file. **Note:** In order to exploit this vulnerability, the attacker needs to invest resources in preparing the attack and brute-force the encryption.

How to fix CVE-2023-26154

To remediate CVE-2023-26154, upgrade the affected package to a fixed version below.

• —upgrade to 0.4.0 or later
• —upgrade to 0.0.0-20231016150651-428517fef5b9 or later
• —no fix listed
• —no fix listed
• —upgrade to 5.0.4-0.20231016150651-428517fef5b9 or later
• —upgrade to 6.1.1-0.20231016150651-428517fef5b9 or later
• —no fix listed
• —upgrade to 7.2.0 or later
• —upgrade to 7.2.0 or later
• —no fix listed
• —upgrade to 7.7.0 or later
• —upgrade to 7.4.0 or later
• —upgrade to 6.19.0 or later
• —upgrade to 6.1.0 or later
• —upgrade to 7.3.0 or later

Is CVE-2023-26154 being exploited?

Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.

Affected packages (16)

• from 0, < 0.4.0
• from 0, < 0.0.0-20231016150651-428517fef5b9
• from 0
• from 0
• from 0, < 5.0.4-0.20231016150651-428517fef5b9
• from 0, < 6.1.1-0.20231016150651-428517fef5b9
• from 0
• from 0, < 7.2.0
• from 0, < 7.2.0
• from 0, <= 4.6.5

CVSS scores

References (22)

• ADVISORYgithub.com/advisories/GHSA-5844-q3fc-56rh
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-26154
• PATCHgithub.com/pubnub/javascript
• WEBgist.github.com/vargad/20237094fce7a0a28f0723d7ce395bb0
• WEB