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    Rewterz Threat Advisory – Multiple F5 BIG-IP Vulnerabilities

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    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

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    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

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    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
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  • Platform
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    Read More about XDR

    Platform

    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    Rewterz Threat Advisory – Multiple F5 BIG-IP Vulnerabilities

    Managed Security Services

    • Managed Security Monitoring
    • Remote SOC
    • Onsite SOC
    • Hybrid SOC

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

  • Services

    Assess

    • Compromise Assessment
    • APT Assessment
    • Penetration Testing
    • Architecture Design & Review
    • Red Team Assessment
    • Purple Team Assessment
    • Social Engineering
    • Source Code Review

    Transform

    • SOC Consultancy
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    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

    • Contact
    • Careers
Get in Touch
Rewterz
Rewterz Threat Advisory – CVE-2023-20073 – Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Vulnerability
February 2, 2023
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Rewterz Threat Advisory – CVE-2023-20068 – Cisco Prime Infrastructure Vulnerability
February 2, 2023

Rewterz Threat Advisory – Multiple F5 BIG-IP Vulnerabilities

February 2, 2023

Severity

High

Analysis Summary

CVE-2023-22842 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a flaw when a SIP profile is configured on a Message Routing type virtual server. By sending a specially-crafted traffic, a remote attacker could exploit this vulnerability to cause the Traffic Management Microkernel (TMM) to terminate, and results in a denial of service condition.

CVE-2023-22323 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a flaw when OCSP authentication profile is configured on a virtual server. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to cause an increase in CPU resource utilization, and results in a denial of service condition.

CVE-2023-22281 CVSS:7.5

F5 BIG-IP (AFM) is vulnerable to a denial of service, caused by a flawwhen NAT policy with a destination NAT rule is configured on a FastL4 virtual server. By sending a specially-crafted traffic, a remote attacker could exploit this vulnerability to cause the Traffic Management Microkernel (TMM) to terminate, and results in a denial of service condition.

CVE-2023-22422 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a HTTP profile vulnerability. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause the Traffic Management Microkernel (TMM) to terminate.

CVE-2023-22358 CVSS:6.6

F5 BIG-IP (APM) could allow a local authenticated attacker to gain elevated privileges on the system, caused by improper loading of Dynamic Link Libraries by the installer. By using a specially-crafted .DLL file, an authenticated attacker could exploit this vulnerability to gain administrative privileges.

CVE-2023-22664 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a flaw when a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to cause an increase in memory resource utilization, and results in a denial of service condition.

CVE-2023-22340 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a flaw when a SIP profile is configured on a Message Routing type virtual server. By sending a specially-crafted traffic, a remote attacker could exploit this vulnerability to cause TMM to terminate, and results in a denial of service condition.

CVE-2023-22341 CVSS:7.5

F5 BIG-IP (APM) is vulnerable to a denial of service, caused by a flaw in the OAuth profile configurations By sending specially-crafted requests, a remote attacker could exploit this vulnerability to cause the Traffic Management Microkernel (TMM) to terminate, and results in a denial of service condition.

CVE-2023-23555 CVSS:7.5

F5 BIG-IP is vulnerable to a denial of service, caused by a flaw in BIG-IP Virtual Edition. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause the Traffic Management Microkernel (TMM) to terminate.

CVE-2023-23552 CVSS:7.5

F5 BIG-IP (ASM) is vulnerable to a denial of service, caused by a flaw when a BIG-IP Advanced WAF or BIG-IP ASM security policy is configured on a virtual server. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to cause an increase in memory resource utilization, and results in a denial of service condition.

CVE-2023-22374 CVSS:7.5

F5 BIG-IP could allow a remote authenticated attacker to execute arbitrary code on the system, caused by a format string flaw in the iControl SOAP. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or crash the iControl SOAP CGI process on the system.

Impact

  • Code Execution
  • Privilege Escalation
  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2023-22842
  • CVE-2023-22323
  • CVE-2023-22281
  • CVE-2023-22422
  • CVE-2023-22358
  • CVE-2023-22664
  • CVE-2023-22340
  • CVE-2023-22341
  • CVE-2023-23555
  • CVE-2023-23552
  • CVE-2023-22374

Affected Vendors

F5

Affected Products

  • F5 BIG-IP 14.1.0
  • F5 BIG-IP 13.1.0
  • F5 BIG-IP (AFM) 15.1.0
  • F5 BIG-IP (AFM) 14.1.0
  • F5 BIG-IP (AFM) 13.1.0
  • F5 BIG-IP 15.1.0
  • F5 BIG-IP 16.1.0
  • F5 BIG-IP (AFM) 16.1.0
  • F5 BIG-IP 13.1.5
  • F5 BIG-IP 16.1.3
  • F5 BIG-IP 14.1.5
  • F5 BIG-IP 17.0.0
  • F5 BIG-IP (AFM) 16.1.3
  • F5 BIG-IP 15.1.8
  • F5 BIG-IP (AFM) 17.0.0
  • F5 BIG-IP (AFM) 15.1.7
  • F5 BIG-IP (AFM) 14.1.5
  • F5 BIG-IP (AFM) 13.1.5
  • F5 BIG-IP SPK 1.6.0
  • F5 BIG-IP SPK 1.5
  • F5 BIG-IP 16.1.2.2
  • F5 BIG-IP 15.1.5.1
  • F5 BIG-IP 14.1.4.6

Remediation

Refer to F5 Security Advisory for patch, upgrade or suggested workaround information.

CVE-2023-22842

CVE-2023-22323

CVE-2023-22281

CVE-2023-22422

CVE-2023-22358

CVE-2023-22664

CVE-2023-22340

CVE-2023-22341

CVE-2023-23555

CVE-2023-23552

CVE-2023-22374

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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