CVE-2015-8013: OpenPGP Arbitrary Message Decryption Vulnerability in openpgp
Summary
CVE-2015-8013: OpenPGP 1.2.0 and earlier decrypts arbitrary messages. Affects openpgp versions < 1.3.0. Fixed in 1.3.0. How to fix ↓
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Background
OpenPGP is an open-source encryption standard that provides cryptographic privacy and authentication for data communication. It is widely used for secure email communication and file encryption. The openpgp package is an implementation of the OpenPGP standard for JavaScript. It allows developers to encrypt, decrypt, sign, and verify OpenPGP messages using JavaScript.
Vulnerability Detail
The openpgp package, specifically the s2k.js module in OpenPGP.js version 1.2.0 and earlier, is vulnerable to an arbitrary message decryption vulnerability. This vulnerability allows remote attackers to bypass authentication if message decryption is used as an authentication mechanism. An attacker can exploit this vulnerability by crafting a PGP key with a symmetrically encrypted PGP message. When the vulnerable code decrypts the crafted message, it will decrypt arbitrary messages regardless of the passphrase, effectively bypassing authentication. The impact of this vulnerability is significant as it undermines the security provided by OpenPGP encryption and authentication mechanisms.
How To Fix
Minimum fixed version
1.3.0
This is the first release that contains the fix.
npm install openpgp@1.3.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is recommended to update the openpgp package to the fixed version as soon as possible.
Conclusion
The openpgp package is vulnerable to an arbitrary message decryption issue, which allows remote attackers to bypass authentication. To mitigate this vulnerability, developers should update the package to version 1.3.0 or later. It is crucial to promptly address this vulnerability to ensure the security of OpenPGP encryption and authentication mechanisms. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
OpenPGP is an open-source encryption standard that provides cryptographic privacy and authentication for data communication. It is widely used for secure email communication and file encryption.
The openpgp package is an implementation of the OpenPGP standard for JavaScript. It allows developers to encrypt, decrypt, sign, and verify OpenPGP messages using JavaScript.
This vulnerability allows remote attackers to bypass authentication if message decryption is used as an authentication mechanism. It undermines the security provided by OpenPGP encryption and authentication mechanisms.
To fix this vulnerability, developers should update the openpgp package to version 1.3.0 or later. The fix includes patches to the s2k.js module that address the arbitrary message decryption issue.
There is no known workaround for this vulnerability. It is recommended to update the openpgp package to the fixed version as soon as possible.
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