Description
Sendmail before 8.10.0 allows remote attackers to cause a denial of service by sending a series of ETRN commands then disconnecting from the server, while Sendmail continues to process the commands after the connection has been terminated.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Eric Allman Sendmail 8.9.1/8.9.3 - ETRN Denial of Service EDB-19701 · dos · Dec 22, 1999 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 19991222 Re: procmail / Sendmail - five bugs mailing-list
- 904 vdb-entry
- 20000113 Re: procmail / Sendmail - five bugs mailing-list
- sendmail-etrn-dos(7760) vdb-entry