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.)
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Pulse Secure Pulse Connect Secure | — | Update Pulse Connect Secure to version 8.2R5 | Oct 28, 2020 | Apr 6, 2020 |
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