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Files from Blasty

Email addressblasty at geekz.nl
First Active2003-10-21
Last Active2023-12-21
Glibc Tunables Privilege Escalation
Posted Dec 21, 2023
Authored by Blasty, jheysel-r7, Qualys Threat Research Unit | Site metasploit.com

A buffer overflow exists in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. It has been dubbed Looney Tunables. This issue allows an local attacker to use maliciously crafted GLIBC_TUNABLES when launching binaries with SUID permission to execute code in the context of the root user. This Metasploit module targets glibc packaged on Ubuntu and Debian. Fedora 37 and 38 and other distributions of linux also come packaged with versions of glibc vulnerable to CVE-2023-4911 however this module does not target them.

tags | exploit, overflow, local, root
systems | linux, debian, fedora, ubuntu
advisories | CVE-2023-4911
SHA-256 | e48ab23fe12076a6f076606de74abf4141a72444bfb88e5c9ea8bf73a3f2b891
Dirty Pipe SUID Binary Hijack Privilege Escalation
Posted Mar 8, 2022
Authored by Blasty, Max Kellermann

Variant proof of concept exploit for the Dirty Pipe file overwrite vulnerability. This version hijacks a SUID binary to spawn a root shell.

tags | exploit, shell, root, proof of concept
advisories | CVE-2022-0847
SHA-256 | 896e5b87da1c2dcdc6b5bf2a4c03daf9da0145521f3b205c1bcf72db8ff2340f
Sudo 1.8.31p2 / 1.9.5p1 Buffer Overflow
Posted Feb 5, 2021
Authored by Blasty, Spencer McIntyre, Qualys Security Advisory, bwatters-r7, Alexander Krog | Site metasploit.com

A heap based buffer overflow exists in the sudo command line utility that can be exploited by a local attacker to gain elevated privileges. The vulnerability was introduced in July of 2011 and affects version 1.8.2 through 1.8.31p2 as well as 1.9.0 through 1.9.5p1 in their default configurations. The technique used by this implementation leverages the overflow to overwrite a service_user struct in memory to reference an attacker controlled library which results in it being loaded with the elevated privileges held by sudo.

tags | exploit, overflow, local
advisories | CVE-2021-3156
SHA-256 | cdf458fa2ff6a679afd1037bdb879758b301305b20f223b3aade629bb97b04bc
Nagios3 history.cgi Host Command Execution
Posted Jan 17, 2013
Authored by Blasty, temp66, Jose Selvi | Site metasploit.com

This Metasploit module abuses a command injection vulnerability in the Nagios3 history.cgi script.

tags | exploit, cgi
advisories | CVE-2012-6096, OSVDB-88322
SHA-256 | 2d998e6af394b654b4e6c4d7e3889f719c9559d52bd93cdc30862fc829af9295
Nagios 3.x Remote Command Execution
Posted Jan 15, 2013
Authored by Blasty

Nagios version 3.x suffers from a remote command execution vulnerability in history.cgi.

tags | exploit, remote, cgi
advisories | CVE-2012-6096
SHA-256 | e9958b0f049ad1bc4400634ee8177ed434f1a56da56c38cae3879f16f2a207c8
Samba SetInformationPolicy AuditEventsInfo Heap Overflow
Posted Sep 28, 2012
Authored by unknown, Blasty, sinn3r, juan vazquez | Site metasploit.com

This Metasploit module triggers a vulnerability in the LSA RPC service of the Samba daemon because of an error on the PIDL auto-generated code. Making a specially crafted call to SetInformationPolicy to set a PolicyAuditEventsInformation allows to trigger a heap overflow and finally execute arbitrary code with root privileges. The module uses brute force to guess the system() address and redirect flow there in order to bypass NX. The start and stop addresses for brute forcing have been calculated empirically. On the other hand the module provides the StartBrute and StopBrute which allow the user to configure his own addresses.

tags | exploit, overflow, arbitrary, root
advisories | CVE-2012-1182, OSVDB-81303
SHA-256 | 9949872fc1ebdc3a22c30908a1250ac0f492dd32e5fa7cdf09b5146958389629
Posted Oct 21, 2003
Authored by Blasty | Site geekz.nl

mIRC v6.1 and below remote exploit which takes advantage of the bug described in mirc61.txt. Creates a HTML file which overflows the irc:// URI handling, spawning a local cmd.exe window. The exploit works even if mIRC is not started - The HTML can be in a HTML email or on a web page. Tested against Windows XP build 2600.xpclient.010817-1148.

tags | exploit, remote, web, overflow, local
systems | windows
SHA-256 | 4cd0bf42beaab24a9681b6932162eb72775c3439db6704c72c2c8e2f9991b043
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