CVE-2019-25681 — HIGH (8.4)

Vulnerability Description

Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows local attackers to crash the application and overwrite SEH pointers by supplying a crafted buffer string. Attackers can inject a 428-byte payload through the program execution field in virtual server configuration to trigger a buffer overflow that corrupts the SEH chain and enables potential code execution.

CVSS Score

8.4

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xlightftpd	Xlight Ftp Server	3.9.1

Related Weaknesses (CWE)

CWE-787

References

https://www.exploit-db.com/exploits/46458ExploitVDB Entry
https://www.vulncheck.com/advisories/xlight-ftp-server-seh-overwrite-buffer-overThird Party Advisory
https://www.xlightftpd.com/download/xlight.zipProduct
https://www.xlightftpd.com/index.htmProduct

FAQ

What is CVE-2019-25681?

CVE-2019-25681 is a vulnerability with a CVSS score of 8.4 (HIGH). Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows local attackers to crash the application and overwrite SEH pointers by supplying a crafted buf...

How severe is CVE-2019-25681?

CVE-2019-25681 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-25681?

Check the references section above for vendor advisories and patch information. Affected products include: Xlightftpd Xlight Ftp Server.