CVE-2019-6690 : What You Need to Know
Learn about CVE-2019-6690, a vulnerability in python-gnupg version 0.4.3 that allows attackers to manipulate gnupg into decrypting unintended ciphertext. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
CVE-2019-6690 was published on March 17, 2019, with a public disclosure date of January 19, 2019. The vulnerability affects version 0.4.3 of python-gnupg and allows attackers to manipulate gnupg into decrypting unintended ciphertext under specific conditions.
Understanding CVE-2019-6690
This CVE entry describes a vulnerability in python-gnupg version 0.4.3 that can be exploited by attackers to deceive gnupg into decrypting ciphertext not originally intended.
What is CVE-2019-6690?
The vulnerability in python-gnupg version 0.4.3 allows attackers, under specific circumstances, to trick gnupg into decrypting ciphertext that was not the original target. The attacker must control the passphrase used by gnupg and have the ciphertext deemed trustworthy.
The Impact of CVE-2019-6690
The vulnerability poses a security risk as it enables attackers to manipulate gnupg into decrypting unintended ciphertext, potentially leading to unauthorized access to sensitive information.
Technical Details of CVE-2019-6690
CVE-2019-6690 involves the following technical aspects:
Vulnerability Description
The vulnerability in python-gnupg version 0.4.3 allows context-dependent attackers to deceive gnupg into decrypting ciphertext other than the intended target by controlling the passphrase and ensuring the ciphertext is trusted.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: 0.4.3 (affected)
Exploitation Mechanism
To exploit this vulnerability, the attacker must have control over the passphrase used by gnupg and ensure that the ciphertext is considered trustworthy.
Mitigation and Prevention
To address CVE-2019-6690, consider the following mitigation strategies:
Immediate Steps to Take
- Update python-gnupg to a patched version if available.
- Monitor for any unauthorized decryption activities.
Long-Term Security Practices
- Implement strong passphrase management practices.
- Regularly review and update encryption mechanisms.
Patching and Updates
- Stay informed about security updates for python-gnupg.
- Apply patches promptly to mitigate the risk of exploitation.