Ivanti Pulse Connect Secure and Policy Secure Command Injection Vulnerability

Exploited · KEV 2021-11-03RansomwareMetasploit moduleCVE-2019-11539CWE-78

Exploited since 2021-11-03. No WAF vendor names it yet.

Edge rules

0/8

Our test

No exploit yet

CVSS

8.0

EPSS

98.5% Top 0.1%

Posts, 14d

Published

2019-04-26

In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, 8.2RX before 8.2R12.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure version 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, 5.3RX before 5.3R12.1, 5.2RX before 5.2R12.1, and 5.1RX before 5.1R15.1, the admin web interface allows an authenticated attacker to inject and execute commands.

Edge coverage

Claimed by vendors

CloudflareBefore feed historyOlder than its feed AWSBefore feed historyOlder than its feed Microsoft AzureNo public claimNot named Google CloudBefore feed historyOlder than its feed FastlyBefore feed historyOlder than its feed F5Before feed historyOlder than its feed AkamaiNo public sourceNo public changelog OWASP CRSBefore feed historyOlder than its feed

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Ask about CVE-2019-11539: who's covered, what to patch first, how vendors compare. I cite sources and won't help with attacks.

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Severity, decoded

CVSS 3.0

8.0High

High · 8.0 / 10

Exploitable over the network under specific conditions, with high privileges and no user interaction, leading to full loss of confidentiality, integrity and availability, and the impact can reach components beyond the vulnerable one.

Over the internetAdmin login neededNo user actionHard to pull offSpreads beyond the appFull compromise

How the score is built8 metrics

Attack vectorAn attacker can reach it over the internet; no access to your network needed.
Network
Attack complexityThe attack only works when conditions outside the attacker's control line up.
High
Privileges requiredThe attacker needs an administrator-level account.
High
User interactionNo one has to click or open anything; the attack works on its own.
None
ScopeThe attack can spread beyond the vulnerable component to other parts of the system.
Changed
Confidentiality impactAn attacker can read all data the affected component holds, or the most sensitive parts of it.
High
Integrity impactAn attacker can change any data or files the affected component protects.
High
Availability impactAn attacker can take the component down completely or keep it from serving anyone.
High

CVSS:3.0/AC:H/AV:N/A:H/C:H/I:H/PR:H/S:C/UI:N

CISA's assessmentSSVC, from the CVE record

ExploitationActive

Attackers are exploiting this in the wild.

AutomatableNo

At least one step needs hands-on work, which slows mass attacks.

Technical impactTotal

A successful attack gives full control over the affected software or all of its data.

Public exploits

3 found

1 Metasploit2 Exploit-DB0 Scanner template0 GitHub PoCs

MetasploitPulse Secure VPN Arbitrary Command Execution2019-04-24 · exploit · rank Excellent · has check
Exploit-DBPulse Secure VPN - Arbitrary Command Execution (Metasploit)2019-11-20 · remote · multiple · verified
Exploit-DBPulse Secure 8.1R15.1/8.2/8.3/9.0 SSL VPN - Remote Code Execution2019-09-06 · remote · multiple

Links are to third-party code: never run it outside an isolated lab.

Timeline

2019-04-24
Metasploit module published
Pulse Secure VPN Arbitrary Command Execution
2019-04-26
CVE published
CVE List
2019-09-06
Exploit published on Exploit-DB
Pulse Secure 8.1R15.1/8.2/8.3/9.0 SSL VPN - Remote Code Execution
2021-11-03
Added to CISA KEV
Confirmed exploitation in the wild