GoogleOSV:GHSA-5844-Q3FC-56RHpubnub Insufficient Entropy vulnerability
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.
References
gist.github.com/vargad/20237094fce7a0a28f0723d7ce395bb0
github.com/advisories/GHSA-5844-q3fc-56rh
github.com/pubnub/go/commit/428517fef5b901db7275d9f5a75eda89a4c28e08
github.com/pubnub/javascript
github.com/pubnub/javascript/blob/master/src/crypto/modules/web.js#L70
github.com/pubnub/javascript/commit/fb6cd0417cbb4ba87ea2d5d86a9c94774447e119
github.com/rubysec/ruby-advisory-db/blob/master/gems/pubnub/CVE-2023-26154.yml
nvd.nist.gov/vuln/detail/CVE-2023-26154
security.snyk.io/vuln/SNYK-COCOAPODS-PUBNUB-6098384
security.snyk.io/vuln/SNYK-DOTNET-PUBNUB-6098372
security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGO-6098373
security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPUBNUBGOV7-6098374
security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098371
security.snyk.io/vuln/SNYK-JAVA-COMPUBNUB-6098380
security.snyk.io/vuln/SNYK-JS-PUBNUB-5840690
security.snyk.io/vuln/SNYK-PHP-PUBNUBPUBNUB-6098376
security.snyk.io/vuln/SNYK-PUB-PUBNUB-6098385
security.snyk.io/vuln/SNYK-PYTHON-PUBNUB-6098375
security.snyk.io/vuln/SNYK-RUBY-PUBNUB-6098377
security.snyk.io/vuln/SNYK-RUST-PUBNUB-6098378
security.snyk.io/vuln/SNYK-SWIFT-PUBNUBSWIFT-6098381
security.snyk.io/vuln/SNYK-UNMANAGED-PUBNUBCCORE-6098379
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