8.8
HIGH
CVE-2020-11582
Pulse Connect Secure Applet Host Checker TCP Server Remote Command Execution Vulnerability
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.)

INFO

Published Date :

April 6, 2020, 9:15 p.m.

Last Modified :

Sept. 16, 2021, 1:44 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-11582 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Pulsesecure pulse_connect_secure
2 Pulsesecure pulse_policy_secure
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-11582.

URL Resource
https://git.lsd.cat/g/pulse-host-checker-rce Exploit Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-11582 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-11582 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Sep. 16, 2021

    Action Type Old Value New Value
    Changed Reference Type https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 No Types Assigned https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:pulsesecure:pulse_policy_secure:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Sep. 08, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-307 CWE-668
  • CVE Modified by [email protected]

    Apr. 08, 2020

    Action Type Old Value New Value
    Added Reference https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 07, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://git.lsd.cat/g/pulse-host-checker-rce No Types Assigned https://git.lsd.cat/g/pulse-host-checker-rce Exploit, Third Party Advisory
    Added CWE NIST CWE-307
    Added CPE Configuration AND OR *cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:* versions up to (including) 2020-04-06 OR cpe:2.3:o:apple:mac_os:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-11582 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-11582 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.01%

score

0.46339

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability