Re: [FD] [oss-security] CVE-2016-4484: - Cryptsetup Initrd root Shell - Update: Dracut is also vulnerable

2016-11-15 Thread Hector Marco-Gisbert
Hello, We have found that systems that use Dracut instead of initramfs are also vulnerables (tested on Fedora 24 x86_64). Regards, Hector Marco & Ismael Ripoll. > Hello All, > > > Affected package Cryptsetup <= 2:1 > > > CVE-ID -- CVE-2

[FD] CVE-2016-4484: - Cryptsetup Initrd root Shell

2016-11-15 Thread Hector Marco
lso possible to remotely exploit this vulnerability without having "physical access." Full description: - http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html Regards, Hector Marco & Ismael Ripoll. signature.asc Description: OpenPGP

[FD] CVE-2016-3672 - Unlimiting the stack not longer disables ASLR

2016-04-06 Thread Hector Marco-Gisbert
, but unfortunately it was still present in current Linux systems. Details at: http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html Best, Hector. -- Dr. Hector Marco-Gisbert @ http://hmarco.org/ Cyber Security Researcher @ http://cybersecurity.upv.es Universitat

[FD] Glibc Pointer guarding weakness

2015-09-07 Thread Hector Marco-Gisbert
. Details and PoC at: http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html A patch is already sent to Glibc maintainers. This issue is similar to http://hmarco.org/bugs/CVE-2013-4788.html but now affect to dynamic linked applications. -- Hector Marco-Gisbert @ http://hmarco.org/ Cyber Security

Re: [FD] AMD Bulldozer Linux ASLR weakness: Reducing entropy by 87.5%

2015-05-08 Thread Hector Marco-Gisbert
are configured at once (without exiting from the menuconfig), then the system gets properly configured. It seems that something in the PaX Kconfig files are not properly done. Could anyone check it ? So, if you are using PaX, it worth to ensure that you are not losing any PaX feature. -- Hector Marco

[FD] Linux ASLR mmap weakness: Reducing entropy by half

2015-04-21 Thread Hector Marco-Gisbert
). Advisory details at: http://hmarco.org/bugs/linux-ASLR-reducing-mmap-by-half.html -- Hector Marco-Gisbert @ http://hmarco.org/ Cyber Security Researcher @ http://cybersecurity.upv.es Universitat Politècnica de València (Spain) ___ Sent through

[FD] CVE-2015-1574 - Google Email App 4.2.2 remote denial of service

2015-02-13 Thread Hector Marco
, Hector Marco. http://hmarco.org ___ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives RSS: http://seclists.org/fulldisclosure/

[FD] CVE-2015-1593 - Linux ASLR integer overflow: Reducing stack entropy by four

2015-02-13 Thread Hector Marco
at: http://hmarco.org/bugs/linux-ASLR-integer-overflow.html Regards, Hector Marco. http://hmarco.org ___ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives RSS: http://seclists.org

[FD] Offset2lib: bypassing full ASLR on 64bit Linux

2014-12-04 Thread Hector Marco
exploit, recommendations and a demonstrative video has been publish at: http://cybersecurity.upv.es/attacks/offset2lib/offset2lib.html Hector Marco. http://cybersecurity.upv.es ___ Sent through the Full Disclosure mailing list http://nmap.org/mailman

[FD] CVE-2014-5439 - Root shell on Sniffit [with exploit]

2014-11-26 Thread Hector Marco
Space Layout Randomisation ASLR And execute arbitrary code with root privileges. Exploit, fix and discussion in: http://hmarco.org/bugs/CVE-2014-5439-sniffit_0.3.7-stack-buffer-overflow.html Regards, Hector Marco. http://hmarco.org Cybersecurity researcher at: http://cybersecurity.upv.es

[FD] CVE-2013-6876 s3dvt Root shell

2014-06-03 Thread Hector Marco
at: http://hmarco.org/bugs/s3dvt_0.2.2-root-shell.html Because we found a bug in bash = 4.3 this vulnerability can be successfully exploited. Bash bug details at: http://hmarco.org/bugs/bash_4.3-setuid-bug.html Hector Marco http://hmarco.org

[FD] CVE-2013-6825 DCMTK Root Privilege escalation

2014-06-03 Thread Hector Marco
are: - dcmpsrcv - dcmprscp - movescu - storescp - dcmqrscp - wlmscpfs - dcmrecv Details, patches, discussion and strategy to exploit at: http://hmarco.org/bugs/dcmtk-3.6.1-privilege-escalation.html Hector Marco http://hmarco.org ___ Sent through

[FD] CVE-2014-1226 s3dvt Root shell (still)

2014-06-03 Thread Hector Marco
this vulnerability can be successfully exploited. Bash bug details at: http://hmarco.org/bugs/bash_4.3-setuid-bug.html Hector Marco http://hmarco.org ___ Sent through the Full Disclosure mailing list http://nmap.org/mailman/listinfo/fulldisclosure Web

[FD] Bug in bash = 4.3 [security feature bypassed]

2014-06-03 Thread Hector Marco
in an attack. We strongly recommend to patch your bash code. Why don't fix this bug by simple adding mandatory if clause ? Any comments about this issue are welcomed. Details at: http://hmarco.org/bugs/bash_4.3-setuid-bug.html Thanks you, Hector Marco http://hmarco.org