A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests. This module checks the vulnerability exploiting the heap overflow and doing a Welch's t-test between two time datasets.
The method exportXFAData has inadvertently exposed a dangerous loophole that can allow a remote attacker to execute arbitrary code on the victim's system. The exploitation process requires the victim's interaction, meaning a potential attacker would need to convince the target to visit a malicious web page or open a corrupted file. The victim's susceptibility to social engineering thus significantly increases the risk factor of this vulnerability.