CVEvulnerability

CVE-2020-11582

8.8 HIGH Published 2020-04-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
3.3 LOW — AV:A/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-668

Description

An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. The applet in tncc.jar, executed on macOS, Linux, and Solaris clients when a Host Checker policy is enforced, launches a TCP server that accepts local connections on a random port. This can be reached by local HTTP clients, because up to 25 invalid lines are ignored, and because DNS rebinding can occur. (This server accepts, for example, a setcookie command that might be relevant to CVE-2020-11581 exploitation.)

Affected configurations

• pulsesecure pulse connect secure (<= 2020-04-06) • pulsesecure pulse policy secure

Related

Weakness · CWE (1)

  • CWE-668 Exposure of Resource to Wrong Sphere weakness

References