Weak Encryption Implementation in heinekingmedia StashCat

CVE-2017-11133 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

An issue was discovered in heinekingmedia StashCat through 1.7.5 for Android, through 0.0.80w for Web, and through 0.0.86 for Desktop. To encrypt messages, AES in CBC mode is used with a pseudo-random secret. This secret and the IV are generated with math.random() in previous versions and with CryptoJS.lib.WordArray.random() in newer versions, which uses math.random() internally. This is not cryptographically strong.

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