Description:
Cisco released security advisories to address multiple vulnerabilities in Cisco devices and software. For information about the vulnerabilities and the attacking vectors, please refer to the corresponding security advisories at the vendor's website.
Affected Systems:
- Cisco Application Policy Infrastructure Controller
- Cisco NX-OS
- Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode
- Cisco Nexus 9500 Series Switches
- Cisco UCS Manager
For detailed information of the affected products, please refer to the section "Affected Products" of corresponding security advisory at vendor's website.
Impact:
Depending on the vulnerabilities being exploited, a successful exploitation could lead to remote command injection, cross-site scripting, denial of service, information disclosure, privilege escalation, security restriction bypass or tampering on an affected system.
Recommendation:
Software updates for affected systems are now available. System administrators of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk. For detailed information of the available patches, please refer to the section "Fixed Software" of corresponding security advisory at vendor's website.
System administrators should contact their product support vendors for the fixes and assistance.
More Information:
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-chvul-CKfGYBh8
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-frw-Nt3RYxR2
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-mdvul-HBsJBuvW
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-pesc-pkmGK4J
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-scss-bFT75YrM
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-queue-wedge-cLDDEfKF
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n9kaci-tcp-dos-YXukt6gM
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-naci-afr-UtjfO2D7
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-naci-mdvul-vrKVgNU
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nexus-acl-vrvQYPVe
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-login-blockfor-RwjGVEcu
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ngoam-dos-LTDb9Hv
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-dos-MgvmyrQy
- https://www.hkcert.org/security-bulletin/cisco-products-multiple-vulnerabilities_20210826
- https://us-cert.cisa.gov/ncas/current-activity/2021/08/26/cisco-releases-security-updates-multiple-products
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1523
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1577 (to CVE-2021-1584)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1586 (to CVE-2021-1588)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1590 (to CVE-2021-1592)
