CA 2E Web Option r8.1.2 accepts a predictable substring of a W2E_SSNID session token in place of the entire token, which allows remote attackers to hijack sessions by changing characters at the end of this substring, as demonstrated by terminating a session via a modified SSNID parameter to web2edoc/close.htm.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.