CVE-2019-25681

Summary

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.

Affected Software

Weaknesses

• CWE-787: Out-of-bounds Write

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

References

• https://www.exploit-db.com/exploits/46458
• https://www.xlightftpd.com/index.htm
• https://www.xlightftpd.com/download/xlight.zip
• https://www.vulncheck.com/advisories/xlight-ftp-server-seh-overwrite-buffer-overflow

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