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.)
Published: 2020-04-06
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-3932 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.)
History

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Subscriptions

Apple Macos
Linux Linux Kernel
Oracle Solaris
Pulsesecure Pulse Connect Secure Pulse Policy Secure
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T11:35:13.293Z

Reserved: 2020-04-06T00:00:00.000Z

Link: CVE-2020-11582

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-04-06T21:15:13.607

Modified: 2024-11-21T04:58:10.353

Link: CVE-2020-11582

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses