CISA releases advisory on five Apache HTTP server vulnerabilities affecting Cisco products

CISA has released a second advisory about several Apache HTTP server vulnerabilities. Cisco sent out a notice about the vulnerabilities in November, explaining that the Apache Software Foundation disclosed five vulnerabilities affecting the Apache HTTP Server (httpd) 2.4.48 and earlier releases on September 16.

The IDs are CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438. 

Cisco noted that one of the vulnerabilities in the mod_proxy module of Apache HTTP Server (httpd) could allow an unauthenticated, remote attacker to make the httpd server forward requests to an arbitrary server. 

Another could allow an attacker to exploit a vulnerability by sending a crafted HTTP request to a vulnerable device and a successful exploit could allow the attacker to get, modify, or delete resources on other services that may be inaccessible otherwise.

Cisco said in November, the Product Security Incident Response Team “became aware of exploitation attempts of the vulnerability identified by CVE-2021-40438.”

Cisco said the products that are affected by the vulnerabilities include Cisco Cloud Services Platform 2100, Cisco Wide Area Application Services (WAAS), Cisco Wireless Gateway for LoRaWAN, Cisco TelePresence Video Communication Server (VCS), Cisco Expressway Series, Cisco UCS Manager, Cisco Network Assurance Engine, Cisco UCS Director Bare Metal Agent, Cisco UCS Central Software, Cisco Security Manager, Cisco Prime

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