CVE-2017-11133 : Security Advisory and Response

A vulnerability has been identified in heinekingmedia StashCat versions 1.7.5 for Android, 0.0.80w for Web, and 0.0.86 for Desktop due to weak encryption mechanisms.

Understanding CVE-2017-11133

What is CVE-2017-11133?

This CVE identifies a security flaw in heinekingmedia StashCat versions for Android, Web, and Desktop that use weak encryption methods for message encryption.

The Impact of CVE-2017-11133

The vulnerability allows attackers to potentially decrypt encrypted messages due to the weak encryption mechanism employed in the affected versions.

Technical Details of CVE-2017-11133

Vulnerability Description

The encryption mechanism in heinekingmedia StashCat versions uses AES in CBC mode with a secret generated using math.random() or CryptoJS.lib.WordArray.random(), which lacks cryptographic strength.

Affected Systems and Versions

heinekingmedia StashCat 1.7.5 for Android
heinekingmedia StashCat 0.0.80w for Web
heinekingmedia StashCat 0.0.86 for Desktop

Exploitation Mechanism

Attackers can exploit this vulnerability by decrypting messages encrypted using the weak encryption mechanism in the affected versions.

Mitigation and Prevention

Immediate Steps to Take

Update heinekingmedia StashCat to the latest version that addresses this vulnerability.
Avoid sending sensitive information through the application until it is patched.

Long-Term Security Practices

Implement strong encryption algorithms for message encryption.
Regularly update software to ensure the latest security patches are applied.

Patching and Updates

Apply patches provided by heinekingmedia to fix the weak encryption issue in StashCat.