SB2023062614 - Multiple vulnerabilities in Fortra Globalscape EFT

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2023-2990)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing recursive Deflate Stream. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Out-of-bounds read (CVE-ID: CVE-2023-2989)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a boundary condition in the administration server. A remote attacker can trigger an out-of-bounds read error and crash the service or bypass authentication.

Remediation

Install update from vendor's website.

References

• https://kb.globalscape.com/Knowledgebase/11588/Is-EFT-susceptible-to-the-Denial-of-service-via-recursive-Deflate-Stream-vulnerability
• https://www.rapid7.com/blog/post/2023/06/22/multiple-vulnerabilities-in-fortra-globalscape-eft-administration-server-fixed/
• https://kb.globalscape.com/Knowledgebase/11586/Is-EFT-susceptible-to-the-Authentication-Bypass-via-Outofbounds-Memory-Read-vulnerability