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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.
Resources
August 24, 2023
Severity High Analysis Summary Patchwork is an Advanced Persistent Threat (APT) group that has been active since at least 2014. Patchwork primarily targets government, defense, and […]August 24, 2023
Severity High Analysis Summary The Mirai botnet is a type of malware that infects Internet of Things (IoT) devices, such as routers, security cameras, and other […]August 24, 2023
Severity High Analysis Summary Amadey is a botnet, a type of malicious software that infects computers and turns them into “bots” or “zombies” that can be […]Threat Insights
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.
Connect with Us
Platform
Managed Security Services
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.
Resources
August 24, 2023
Severity High Analysis Summary Patchwork is an Advanced Persistent Threat (APT) group that has been active since at least 2014. Patchwork primarily targets government, defense, and […]August 24, 2023
Severity High Analysis Summary The Mirai botnet is a type of malware that infects Internet of Things (IoT) devices, such as routers, security cameras, and other […]August 24, 2023
Severity High Analysis Summary Amadey is a botnet, a type of malicious software that infects computers and turns them into “bots” or “zombies” that can be […]Threat Insights
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.
Connect with Us
Rewterz Threat Advisory – CVE-2023-37379 – Apache Airflow Vulnerability
August 24, 2023
Rewterz Threat Alert – STOP (DJVU) Ransomware – Active IOCs
August 24, 2023
Severity
Medium
Analysis Summary
CVE-2023-20168 CVSS:7.1
Cisco NX-OS Software is vulnerable to a denial of service, caused by improper input validation when processing an authentication attempt when the directed request option is enabled for TACACS+ or RADIUS. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause the device to reload unexpectedly, and results in a denial of service condition.
CVE-2023-20169 CVSS:7.4
Cisco Nexus 3000 and 9000 Series Switches are vulnerable to a denial of service, caused by improper input validation when parsing an ingress IS-IS packet. By sending a specially crafted IS-IS packet, a remote attacker could exploit this vulnerability to cause the IS-IS process to restart unexpectedly, and results in a denial of service condition.
CVE-2023-20200 CVSS:7.7
Cisco Firepower 4100 Series, Firepower 9300 Security Appliances, and UCS 6300 Series Fabric Interconnects are vulnerable to a denial of service, caused by improper handling of specific SNMP requests. By sending a specially crafted SNMP request, a remote authenticated attacker could exploit this vulnerability to cause the device to reload, and results in a denial of service condition.
CVE-2023-20115 CVSS:5.4
Cisco Nexus 3000 and 9000 Series Switches could allow a remote authenticated attacker to bypass security restrictions, caused by a logic error when verifying the user role when an SFTP connection is opened. By sending a specially crafted request, an attacker could exploit this vulnerability to read or overwrite files from the underlying operating system with the privileges of the authenticated user.
CVE-2023-20234 CVSS:4.4
Cisco FXOS Software could allow a local authenticated attacker to bypass security restrictions, caused by improper validating parameters when a specific CLI command is used. By sending a specially crafted CLI command, an attacker could exploit this vulnerability to overwrite arbitrary files on the disk.
CVE-2023-20230 CVSS:5.4
Cisco Application Policy Infrastructure Controller (APIC) could allow a remote authenticated attacker to bypass security restrictions, caused by improper access control when restricted security domains are used. By sending a specially crafted request, an attacker could exploit this vulnerability to read, modify, or delete policies created by users associated with a different security domain.
Impact
- Denial of Service
- Security Bypass
Indicators Of Compromise
CVE
- CVE-2023-20168
- CVE-2023-20169
- CVE-2023-20200
- CVE-2023-20115
- CVE-2023-20234
- CVE-2023-20230
Affected Vendors
Cisco
Affected Products
- Cisco Nexus 3000 Series Switches
- Cisco MDS 9000 Series Multilayer Switches
- Cisco Nexus 6000 Series Switches
- Cisco Nexus 7000 Series Switches
- Cisco Nexus 5500 Platform Switches
- Cisco Nexus 5600 Platform Switches
- Cisco NX-OS Software
- Cisco Nexus 9000 Series Switches in standalone NX-OS mode
- Cisco Nexus 1000V Switch for Microsoft Hyper-V
- Cisco Nexus 1000V Switch for VMware vSphere
- Cisco Nexus 1000 Virtual Edge for VMware vSphere
- Cisco UCS 6300 Series Fabric Interconnects
- Cisco Firepower 9300 Security Appliances
- Cisco Firepower 9300 Series Security Appliances
- Cisco FXOS Software
- Cisco Firepower 4100 Series
- Cisco Firepower 2100 Series
- Cisco Firepower 1000 Series
- Cisco Secure Firewall 3100 Series
- Cisco Application Policy Infrastructure Controlle
Remediation
Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.