full-disclosure - Possible Python 2.3 DoS Vulnerability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

From: shell6 at gmail.com (Jack Shell)
Subject: Possible Python 2.3 DoS Vulnerability

When you open Python for Windows v 2.3 and enter for the command
<Control+Z> then <Control+I> and press enter, the program crashes.

Problem:
Seems harmless right? Well, if someone was to send a request of
"\x1a\x09" or with "\x1a\x09" at the end to a server/client running on
a Python 2.3 platform, it could cause a denial of service.

POC?:
I tested this out by sending "GET \x1a\x09 HTTP/1.0\r\n" to the
BaseHTTPServer included in the python libs directory and it FREAKED at
the GET request and disconnected me. AND, when I tried to end the
server with the interupt key, I had to press it several times for
about two minutes.

Just thinking....
Shell