Signature Detail

TFTP: Cisco Prime Infrastructure swimtemp TFTP Arbitrary File Upload

This signature detects attempts to exploit a known vulnerability against Cisco Prime Infrastructure. The vulnerability is due to the presence of a symbolic link permitting the upload of files into a location where they can be later executed. A remote unauthenticated attacker can exploit this vulnerability by uploading a crafted file via TFTP. Successful exploitation could result in the execution of arbitrary code in the context of the prime user.

Extended Description

A vulnerability in which the HTTP web server for Cisco Prime Infrastructure (PI) has unrestricted directory permissions could allow an unauthenticated, remote attacker to upload an arbitrary file. This file could allow the attacker to execute commands at the privilege level of the user prime. This user does not have administrative or root privileges. The vulnerability is due to an incorrect permission setting for important system directories. An attacker could exploit this vulnerability by uploading a malicious file by using TFTP, which can be accessed via the web-interface GUI. A successful exploit could allow the attacker to run commands on the targeted application without authentication.

Affected Products

• Cisco prime_infrastructure 3.2
• Cisco prime_infrastructure 3.2(0.0)
• Cisco prime_infrastructure 3.2(1.0)
• Cisco prime_infrastructure 3.2(2.0)
• Cisco prime_infrastructure 3.3
• Cisco prime_infrastructure 3.3(0.0)
• Cisco prime_infrastructure 3.4
• Cisco prime_infrastructure 3.4(0.0)
• Cisco prime_infrastructure 3.5(0.0)

References

• CVE: CVE-2018-15379