#VU27030 Path traversal in Ivanti Connect Secure (formerly Pulse Connect Secure) - CVE-2019-11508

Vulnerability identifier: #VU27030

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-11508

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ivanti Connect Secure (formerly Pulse Connect Secure)
Server applications / Remote access servers, VPN

Vendor: Ivanti

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing file uploads within Network File Share (NFS) feature of Pulse Connect Secure. A remote authenticated user can can send a specially crafted HTTP request and upload dangerous files to arbitrary locations on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ivanti Connect Secure (formerly Pulse Connect Secure): 8.1R1.0 - 9.0R3.2

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External links
https://kb.pulsesecure.net/?atype=sa
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0010

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.