Home/CVE/Ivanti Pulse Connect Secure Code Execution Vulnerability
CVE

CVE-2020-8260

Ivanti Pulse Connect Secure Code Execution Vulnerability

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.

HIGH · CVSS 7.2 ⚠ CISA KEV EPSS 0.73032
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  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules10 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

◆

Threat Actors Linked

1
actorAPT5 (UNC2630 / UNC2717 / Mulberry Typhoon)
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

2
ivanti connect secure<= 9.0
ivanti connect secureall versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Pulse-Secure-VPN-Remote-Code-Execution.htmlpacketstormsecurity.com
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Detection Rules (IDS/IPS)

4
et-openET EXPLOIT Possible Pulse Secure VPN RCE Chain Stage 3 Inbound - Execute Mal Config Trigger (CVE-2020-8260)attempted-admin
et-openET EXPLOIT Pulse Secure VPN RCE Chain Stage 3 Inbound - Execute Mal Config Trigger, PoC Based (CVE-2020-8260)attempted-admin
et-openET EXPLOIT Possible Pulse Secure VPN RCE Chain Stage 2 Inbound - Upload Malicious Config (CVE-2020-8260)attempted-admin
et-openET EXPLOIT Possible Pulse Secure VPN RCE Chain Stage 1 Inbound - Request Config Backup (CVE-2020-8260)attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

10
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalHacktool Execution - Imphash
relatedcriticalHackTool - Rubeus Execution
relatedcriticalPotential Credential Dumping Via LSASS Process Clone
relatedcriticalWCE wceaux.dll Access
relatedcriticalHackTool - Dumpert Process Dumper Default File
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Oct 2020 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisaKEV-CVE-2020-8260
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601Broken LinkVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8260US Government Resource
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