Vulnerability Development mailing list archives
Re: buffer overflow on whois (redhat linux 7.0/7.1 on i686)
From: Jeff Nathan <jeff () wwti com>
Date: Fri, 01 Feb 2002 13:36:38 -0800
Blake Frantz wrote:
I realize the threat is not huge but, some IDS consoles such as demarc call whois from a web interface. If you have a poorly secured IDS console an attacker could utilize an exploit in whois to run code on your IDS console with the same permissions as a web user. Again, this is not Earth shattering, and a lot would have to be 'broke' already for an attacker to get much out of it, but it's atleast worth mentioning. -Blake On 31 Jan 2002, jon schatz wrote:On Thu, 2002-01-31 at 08:37, ladd harris wrote:Testing the whois -p i also get a core dump on red hat 7.1....tried two machines both seem effected. whether it can be exploited i do not still need to do more tests......but what are you going to exploit? i found this bug a while ago, but never reported it because 1) the (newer) whois-1.0.9-1 rpm fixed the problem, and 2) whois isn't setuid. and never needs to be so at most, you're talking about executing code as yourself, which you can do without a buffer overflow. -jon -- jon () divisionbyzero com || www.divisionbyzero.com gpg key: www.divisionbyzero.com/pubkey.asc think i have a virus?: www.divisionbyzero.com/pgp.html "You are in a twisty little maze of Sendmail rules, all confusing."
This looks like a null pointer dereference and is probably the result of a missing NULL test before attempting to use strlen. It's a mistake but it's unlikely that it's an actual vulnerability. -Jeff -- http://jeff.wwti.com (pgp key available) "Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein
Current thread:
- Re: buffer overflow on whois (redhat linux 7.0/7.1 on i686) jon schatz (Jan 31)
- Re: buffer overflow on whois (redhat linux 7.0/7.1 on i686) Blake Frantz (Jan 31)
- Re: buffer overflow on whois (redhat linux 7.0/7.1 on i686) Jeff Nathan (Feb 01)
- Re: buffer overflow on whois (redhat linux 7.0/7.1 on i686) Blake Frantz (Jan 31)