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Files from Ismael Ripoll

First Active2013-07-16
Last Active2016-11-16
Cryptsetup 2:1.7.3-2 Root Initramfs Shell
Posted Nov 16, 2016
Authored by Hector Marco, Ismael Ripoll

A vulnerability in Cryptsetup, concretely in the scripts that unlock the system partition when the partition is ciphered using LUKS (Linux Unified Key Setup). This vulnerability allows to obtain a root initramfs shell on affected systems. The vulnerability is very reliable because it doesn't depend on specific systems or configurations. Attackers can copy, modify or destroy the hard disc as well as set up the network to data. In cloud environments it is also possible to remotely exploit this vulnerability without having "physical access". Cryptsetup versions 2:1.7.3-2 and below are affected.

tags | advisory, shell, root
systems | linux
advisories | CVE-2016-4484
MD5 | 7c810b6c29e27d96a80e6a4b8a3f8d03
Grub2 Authentication Bypass
Posted Dec 15, 2015
Authored by Hector Marco, Ismael Ripoll

Grub2 versions 1.98 through 2.02 suffer from an authentication bypass vulnerability.

tags | advisory, bypass
advisories | CVE-2015-8370
MD5 | 4a7220946b6587ecac77303f9f1f7496
Glibc Pointer Guarding Weakness
Posted Sep 7, 2015
Authored by Hector Marco, Ismael Ripoll | Site hmarco.org

Glibc pointer guarding weakness proof of concept code.

tags | exploit, proof of concept
MD5 | 026beab7e15d3f98f6f01d932849fa41
Packet Storm Advisory 2014-1204-1 - Offset2lib: Bypassing Full ASLR On 64bit Linux
Posted Dec 5, 2014
Authored by Hector Marco, Ismael Ripoll | Site packetstormsecurity.com

The release of this advisory provides exploitation details in relation a weakness in the Linux ASLR implementation. The problem appears when the executable is PIE compiled and it has an address leak belonging to the executable. These details were obtained through the Packet Storm Bug Bounty program and are being released to the community.

tags | advisory, bug bounty, packet storm
systems | linux
MD5 | a5d4f2cb712163a7ebbd72e95f1856ec
Packet Storm Exploit 2014-1204-1 - Offset2lib: Bypassing Full ASLR On 64bit Linux
Posted Dec 5, 2014
Authored by Hector Marco, Ismael Ripoll | Site packetstormsecurity.com

Proof of concept code that demonstrates an ASLR bypass of PIE compiled 64bit Linux.

tags | exploit, proof of concept, bug bounty, packet storm
systems | linux
MD5 | 9b3003328fe6cdd2b86f5a1bb5b63531
Sniffit Root Shell
Posted Nov 27, 2014
Authored by Hector Marco, Ismael Ripoll

A specially-crafted sniffit configuration file can be leveraged to execute code as root.

tags | exploit, root
advisories | CVE-2014-5439
MD5 | 39dc90168b607b2a256340489f35bf4f
s3dvt Privilege Escalation
Posted Jun 2, 2014
Authored by Hector Marco, Ismael Ripoll

s3dvt suffers from a local privilege escalation vulnerability due to a lack of checking the setuid() return code.

tags | advisory, local
advisories | CVE-2013-6876
MD5 | 5223f59a5afab714e8ed88beb17f8a7a
Eglibc PTR MANGLE Bug
Posted Jul 16, 2013
Authored by Hector Marco, Ismael Ripoll

Eglibc suffers from a PTR MANGLE bug. All statically linked applications compiled with glibc and eglibc are affected, independent of the operating system distribution. Note that this problem is not solved by only patching the eglibc, but it is also necessary to recompile all static executables. Proof of concept exploit included.

tags | exploit, proof of concept
systems | linux
advisories | CVE-2013-4788
MD5 | 950ed842b41474f594ac66691fbda019
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