Vulnerability Details : CVE-2020-11581
Potential exploit
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, allows a man-in-the-middle attacker to perform OS command injection attacks (against a client) via shell metacharacters to the doCustomRemediateInstructions method, because Runtime.getRuntime().exec() is used.
Products affected by CVE-2020-11581
- cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*
- cpe:2.3:a:pulsesecure:pulse_policy_secure:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-11581
4.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11581
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2020-11581
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11581
-
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44426
Pulse Security Advisory: SA44426 - 2020-04: Out-of-Cycle Advisory: Multiple Host Checker VulnerabilitiesVendor Advisory
-
https://git.lsd.cat/g/pulse-host-checker-rce
g/pulse-host-checker-rce: MITM RCE Host Checker for Pulse Secure - GogsExploit;Third Party Advisory
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