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CVE-2023-26154

Quick assessment

Affected
n/a pubnub
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PubNub是PubNub开源的一个库。用于负责处理应用程序实时通信层所需的基础设施和 API。 PubNub存在安全漏洞，该漏洞源于AES-256-CBC加密算法的低效实现，容易通过getKey函数受到熵不足的影响。

CVSS 5.9 · Medium EPSS 0.96% · P62

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2023-26154

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
PubNub 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PubNub是PubNub开源的一个库。用于负责处理应用程序实时通信层所需的基础设施和 API。 PubNub存在安全漏洞，该漏洞源于AES-256-CBC加密算法的低效实现，容易通过getKey函数受到熵不足的影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- pubnub 0 ~ 7.4.0 -
- com.pubnub:pubnub 0 ~ * -
- Pubnub 0 ~ 6.19.0 -
- github.com/pubnub/go 0 ~ * -
- github.com/pubnub/go/v7 0 ~ 7.2.0 -
- pubnub 0 ~ 7.3.0 -
- pubnub/pubnub 0 ~ 6.1.0 -
- pubnub 0 ~ 5.3.0 -
- pubnub 0 ~ 0.4.0 -
- pubnub/c-core 0 ~ 4.5.0 -
- com.pubnub:pubnub-kotlin 0 ~ 7.7.0 -
- pubnub/swift 0 ~ 6.2.0 -
- PubNub 0 ~ 5.2.0 -
- pubnub 0 ~ 4.3.0 -

II. Public POCs for CVE-2023-26154

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III. Intelligence Information for CVE-2023-26154

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Patches & Fixes for CVE-2023-26154 (1)

Vendor Advisories for CVE-2023-26154 (12)

Other References for CVE-2023-26154 (2)

Same Patch Batch · n/a · 2023-12-06 · 12 CVEs total

CVE-2023-28875 Afian FileRun 安全漏洞
CVE-2023-28876 Afian FileRun 安全漏洞
CVE-2023-36655 ProLion CryptoSpike 安全漏洞
CVE-2023-46353 PrestaShop SQL注入漏洞
CVE-2023-46354 PrestaShop 安全漏洞
CVE-2023-46751 Artifex Software Ghostscript 安全漏洞
CVE-2023-48849 Ruijie Networks RG-EG Series Routers 安全漏洞
CVE-2023-48930 xinhu 安全漏洞
CVE-2023-48940 DaiCuo 安全漏洞
CVE-2023-48123 Netgate pfSense CE 安全漏洞
CVE-2023-48859 TOTOLINK A3002RU 安全漏洞

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-331