MORE Sendmail Problems – Signal Handling Vulnerability

Use Netsparker


OH MY GOD, NOT ANOTHER SENDMAIL FLAW?

What’s that? Yah number 1001010102121.

Recently, Mark Dowd of ISS discovered a signal handling vulnerability in Sendmail. We don’t see major bugs in software that’s as popular as Sendmail very often (at least, in the Unix world anyways), and that’s probably a good thing. According to sendmail.com, Sendmail still handles about 70 per cent of all email on the internet.

As far as software goes, Sendmail is ancient, dating all the way back to 1981. Sendmail 8 itself is well over 10 years-old. To put it nicely, its security track record is less than stellar. However, the last big show stoppers in Sendmail were found about three years ago & Zalewski’s prescan() bugs reported in September and March of 2003, and crackaddr(), also in March of 2003. The crackaddr() bug was also discovered by Mark Dowd.

So it’s been about 3 years since the last big sendmail bug, but well how many underground exploits are there for sendmail, it seems to have been one of the most insecure peices of software to ever grace the Internet.

The article also addresses some interesting issues, like can software have a finite amount of bugs? I don’t believe so, unless it’s very simple and is never updated, there’s no way it can have a finite amount of errors.

More code or more changes = more bugs.

Source: The Register

Posted in: Exploits/Vulnerabilities, Linux Hacking

, , ,


Latest Posts:


Intercepter-NG - Android App For Hacking Intercepter-NG – Android App For Hacking
Intercepter-NG is a multi functional network toolkit including an Android app for hacking, the main purpose is to recover interesting data from the network stream and perform different kinds of MiTM attacks.
dcipher - Online Hash Cracking Using Rainbow & Lookup Tables dcipher – Online Hash Cracking Using Rainbow & Lookup Tables
dcipher is a JavaScript-based online hash cracking tool to decipher hashes using online rainbow & lookup table attack services.
HTTP Security Considerations - An Introduction To HTTP Basics HTTP Security Considerations – An Introduction To HTTP Basics
HTTP is ubiquitous now with pretty much everything being powered by an API, a web application or some kind of cloud-based HTTP driven infrastructure. With that HTTP Security becomes paramount and to secure HTTP you have to understand it.
Cangibrina - Admin Dashboard Finder Tool Cangibrina – Admin Dashboard Finder Tool
Cangibrina is a Python-based multi platform admin dashboard finder tool which aims to obtain the location of website dashboards by using brute-force, wordlists etc.
Enumall - Subdomain Discovery Using Recon-ng & AltDNS Enumall – Subdomain Discovery Using Recon-ng & AltDNS
Enumall is a Python-based tool that helps you do subdomain discovery using only one command by combining the abilities of Recon-ng and AltDNS.
RidRelay - SMB Relay Attack For Username Enumeration RidRelay – SMB Relay Attack For Username Enumeration
RidRelay is a Python-based tool to enumerate usernames on a domain where you have no credentials by using a SMB Relay Attack with low privileges.


Comments are closed.