Penetration Testing mailing list archives
Re: SAP R/3 password encryption ?
From: Tim <tim-pentest () sentinelchicken org>
Date: Fri, 3 Feb 2006 11:01:32 -0500
But to me it looks like a password hash that might be vulnerable to a dictionary attack. But I don't know whether SAP uses something common (like SHA) or a proprietary algorithm. The password dumps look like this: Old value: New value: |D624B6DF0C787DBC||21621AFB43G9726F| (I changed some values.) |0000000000000000||75ADC566FA921A4A|
It probably isn't using SHA1 or MD5. If I'm reading this right, they're 8 bytes long, yes? My guess is some form of DES hashing then, similar to what traditional crypt() does. Hmm, so I just did a quick Google, and here's a good overview, in section 2.2: http://article.gmane.org/gmane.comp.security.openwall.john.user/273 And more info here: http://article.gmane.org/gmane.comp.security.openwall.john.user/270 (All I did was search for "SAP R/3 password hash".) Looks like SAP have made some of the same mistakes in hashing that Oracle has. They've got several revisions of their hashes though, so maybe they've fixed things... good luck, tim ------------------------------------------------------------------------------ Audit your website security with Acunetix Web Vulnerability Scanner: Hackers are concentrating their efforts on attacking applications on your website. Up to 75% of cyber attacks are launched on shopping carts, forms, login pages, dynamic content etc. Firewalls, SSL and locked-down servers are futile against web application hacking. Check your website for vulnerabilities to SQL injection, Cross site scripting and other web attacks before hackers do! Download Trial at: http://www.securityfocus.com/sponsor/pen-test_050831 -------------------------------------------------------------------------------
Current thread:
- Black Hat USA CFP opens, Europe early bird reminder, Federal news Jeff Moss (Feb 01)
- SAP R/3 password encryption ? Petr . Kazil (Feb 02)
- Re: SAP R/3 password encryption ? Tim (Feb 05)
- Re: SAP R/3 password encryption ? Petr . Kazil (Feb 05)
- Re: SAP R/3 password encryption ? Tim (Feb 05)
- SAP R/3 password encryption ? Petr . Kazil (Feb 02)