PT-2020-12698 · Pulse Secure · Pulse Connect Secure

Giulio · Published 2020-04-06 · Updated 2021-09-16 · CVE-2020-11582

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Pulse Secure Pulse Connect Secure (PCS) versions prior to 2020-04-06

Description An issue was discovered in Pulse Secure Pulse Connect Secure. The applet in tncc.jar launches a TCP server that accepts local connections on a random port when a Host Checker policy is enforced on macOS, Linux, and Solaris clients. This server can be reached by local HTTP clients due to the ignoring of up to 25 invalid lines and the possibility of DNS rebinding.

Recommendations For Pulse Secure Pulse Connect Secure (PCS) versions prior to 2020-04-06, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Exposure of Resource to Wrong Sphere

Weakness Enumeration

CWE-668

Related Identifiers

CVE-2020-11582

Affected Products

Pulse Connect Secure

References · 5

• 🔥 https://git.lsd.cat/g/pulse-host-checker-rce · Exploit
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-11582 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11582 · Security Note
• https://t.me/cvenotify/2444 · Telegram Post