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Connect Secure CVE-2024-21893

HIGH
Server-Side Request Forgery (SSRF) (CWE-918)
2024-01-31 support@hackerone.com
8.2
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A10:2021 - Server-Side Request Forgery
ASVS 5.0
V12 - Files and Resources SSRF prevention, URL validation
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

High risk (CVSS 8.2, EPSS 94.3%). This vulnerability provided a third exploitation path for Ivanti appliances, complicating patching efforts as organizations had to address multiple attack vectors simultaneously.

Exploit ScenarioDerived

When the initial auth bypass (CVE-2023-46805) was mitigated, attackers pivoted to the SAML SSRF to maintain their access to internal Ivanti services and continue exploiting the command injection vulnerability.

Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.
Exploited in the wild (CISA KEV) No patch listed yet 94.3% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 26, 2026

Ivanti Connect Secure and Policy Secure contain an SSRF vulnerability in the SAML component allowing unauthenticated access to restricted resources, used as an additional exploitation vector during the January 2024 Ivanti crisis.

Earlier versions of this analysis (1)
v1 Mar 26, 2026 - 11:20 CVSS 8.2

A server-side request forgery in Ivanti's SAML component allows unauthenticated attackers to access restricted internal resources on Connect Secure and Policy Secure appliances.

RemediationAI

Apply all Ivanti security updates. Disable SAML if not required. Factory reset is recommended. Check for all known Ivanti exploitation indicators.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The CWE-918 SSRF in the SAML authentication component allows attackers to make the Ivanti appliance send requests to internal services. This provides an alternative authentication bypass path to CVE-2023-46805 for reaching the command injection endpoint.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

Lifecycle Timeline

2
Added to CISA KEV
Oct 30, 2025 - 20:40 cisa
CISA KEV
CVE Published
Jan 31, 2024 - 18:15 nvd
HIGH 8.2

DescriptionNVD

A server-side request forgery vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) and Ivanti Neurons for ZTA allows an attacker to access certain restricted resources without authentication.

Executive ViewAI

Why It Matters

CVE-2024-21893 presents notable security risk, a server-side request forgery vulnerability rated CVSS 8.2. Attackers could trick authenticated users into performing unintended actions, potentially modifying critical settings or data. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. Immediate patching is required per CISA KEV mandate.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement strict egress filtering; (2) Use allowlists for outbound connections; (3) Block access to cloud metadata endpoints.

Threat Intelligence Overview

Threat Score
9.5/10
Composite threat intelligence
EPSS Score
94.3%
Top 0% exploitable
Threat Intel
4
1 sources
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV Yes
Public POC Yes
EPSS 94.3%
Patch available No
Active threat Yes
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

230
Low Medium High Critical
KEV: +50
EPSS: +94
CVSS: +41
PoC: +20
Weaponized: +15
Threat intel: +10
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Affected Products (CPE)NVD

cpe:2.3:a:ivanti:connect_secure:9.0:-:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r2.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r3.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r3.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r3.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r3.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r4.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r5.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.0:r6.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r10:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r12:*:*:*:*:*:*
+ 98 more
CVE-2024-21887 CRITICAL POC
9.1 Jan 12

Ivanti Connect Secure and Policy Secure contain an authenticated command injection in web components allowing administra

CVE-2023-46805 HIGH POC
8.2 Jan 12

Ivanti Connect Secure and Policy Secure contain an authentication bypass in the web component allowing unauthenticated a

CVE-2025-0282 CRITICAL POC
9.0 Jan 08

Ivanti Connect Secure, Policy Secure, and Neurons for ZTA contain a stack-based buffer overflow allowing unauthenticated

CVE-2025-22457 CRITICAL POC
9.8 Apr 03

Remote code execution in Ivanti Connect Secure (before 22.7R2.6), Ivanti Policy Secure (before 22.7R1.4), and Ivanti ZTA

CVE-2026-104935 HIGH POC
8.6 Oct 13

Remote unauthenticated attackers can bypass authentication by spoofing in Ivanti Connect Secure versions before 25.1.3.0

CVE-2021-22893 CRITICAL
10.0 Apr 23

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windo

CVE-2025-22467 CRITICAL
9.9 Feb 11

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6 allows a remote authenticated attacker to

CVE-2024-37404 HIGH POC
8.8 Oct 18

Improper Input Validation in the admin portal of Ivanti Connect Secure before 22.7R2.1 and 9.1R18.9, or Ivanti Policy Se

CVE-2020-8260 HIGH POC
7.2 Oct 28

A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform

CVE-2019-11539 HIGH POC
7.2 Apr 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 8.1R

CVE-2024-21894 CRITICAL POC
9.8 Apr 04

A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an

CVE-2019-11540 CRITICAL POC
9.8 Apr 26

In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4 and 8.3RX before 8.3R7.1 and Pulse Policy Secure versi

Threat IntelligenceMISP

Threat Actors
UNC5325 UNC5330
ATT&CK Techniques (observed)
Sources: MITRE ATT&CK, MISP Galaxies (CC0), Metasploit/Nuclei

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