CVE-2010-20049
LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim’s machine when the file is listed or downloaded.
- CVSS 4.0
- 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.80% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121
- Source
- disclosure@vulncheck.com
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/leapftp_list_reply.rb
- https://web.archive.org/web/20111013232627/http://www.leapware.com/
- https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/
- https://www.exploit-db.com/exploits/16704
- https://www.vulncheck.com/advisories/leapftp-stack-buffer-overflow
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/leapftp_list_reply.rb
- https://www.exploit-db.com/exploits/16704
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.