SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow and a Buffer Overflow because a banner can trigger a line number to CSI functions that exceeds INT_MAX.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://www.vandyke.com/support/advisory/index.html | vendor advisory |
| https://twitter.com/taviso/status/1261079774190919680 | third party advisory |
| https://bugs.chromium.org/p/project-zero/issues/detail?id=2033 | third party advisory exploit |
| https://www.vandyke.com/products/securecrt/history.txt | release notes vendor advisory |