What is CVE-2020-8260?

CVE-2020-8260 is a vulnerability in Pulse Connect Secure / Policy, classified under Unrestricted Upload of File with Dangerous Type. Published 2020-10-28.

Is CVE-2020-8260 known to be exploited?

Yes. CVE-2020-8260 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.

Arbitrary file upload in Pulse Connect Secure / Policy

CVE-2020-8260

A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary code execution using uncontrolled gzip extraction.

Vulnerability class: Unrestricted File Upload

EPSS: 0.730 (98.8th percentile) — read the EPSS interpretation.

Affected products

N/a Pulse Connect Secure / Policy — versions 9.1R9

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601 (x_refsource_MISC)
packetstormsecurity.com/files/160619/Pulse-Secure-VPN-Remote-Code-Execution.html (x_refsource_MISC)

Frequently asked questions

What is CVE-2020-8260?: CVE-2020-8260 is a vulnerability in Pulse Connect Secure / Policy, classified under Unrestricted Upload of File with Dangerous Type. Published 2020-10-28.
Is CVE-2020-8260 known to be exploited?: Yes. CVE-2020-8260 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.