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High severity8.8NVD Advisory· Published Apr 6, 2020· Updated Jun 17, 2026

CVE-2020-11582

CVE-2020-11582

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 products

4
  • Pulse Secure/Pulse Connect Securedescription
  • Pulsesecure/Pulse Connect Securellm-fuzzy2 versions
    <=2020-04-06+ 1 more
    • (no CPE)range: <=2020-04-06
    • cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*range: <=2020-04-06
  • Pulsesecure/Policy Secure
    cpe:2.3:a:pulsesecure:pulse_policy_secure:-:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

1

News mentions

0

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