CVE-2002-1077

IPSwitch IMail - Denial of Service via HTTP POST Request Without Content-Length

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2002-1077. PoCs published by anonymous.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service (DoS) vulnerability in IMail's web calendaring service by sending a malformed HTTP POST request with an empty 'content-length' header, causing the iwebcal service to crash.

Description

IPSwitch IMail Web Calendaring service (iwebcal) allows remote attackers to cause a denial of service (crash) via an HTTP POST request without a Content-Length field.

Exploits (1)

exploitdb WORKING POC VERIFIED
by anonymous · textdoswindows
https://www.exploit-db.com/exploits/21673

This exploit demonstrates a denial-of-service (DoS) vulnerability in IMail's web calendaring service by sending a malformed HTTP POST request with an empty 'content-length' header, causing the iwebcal service to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Ipswitch IMail (web calendaring service on port 8484)
No auth needed
Prerequisites: Network access to the target server's port 8484
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2002-07/0399.html
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/5365
Vendor Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9722.php

Scores

EPSS 0.1066
EPSS Percentile 95.3%

Details

Status published
Products (12)
ipswitch/imail 6.1
ipswitch/imail 6.2
ipswitch/imail 6.3
ipswitch/imail 6.4
ipswitch/imail 7.0.1
ipswitch/imail 7.0.2
ipswitch/imail 7.0.3
ipswitch/imail 7.0.4
ipswitch/imail 7.0.5
ipswitch/imail 7.0.6
... and 2 more
Published Oct 04, 2002
Tracked Since Feb 18, 2026