CVE-2024-21893

A server-side request forgery (SSRF) vulnerability has been identified in the SAML component of Ivanti Connect Secure, Ivanti Policy Secure, and Ivanti Neurons for Zero Trust Access. This flaw allows an attacker to send crafted requests from the vulnerable server to internal or external resources, bypassing authentication mechanisms. The vulnerability arises from improper validation of user-supplied input, enabling an attacker to manipulate requests that the server processes. This can lead to unauthorized access to sensitive internal resources, such as databases or internal APIs, which are typically protected by authentication protocols.

The attack vector for this vulnerability is particularly concerning due to its potential for exploitation without requiring extensive technical skills. An attacker could leverage this flaw by crafting a malicious request that the server interprets as legitimate. For instance, an attacker could target endpoints that are not directly accessible from the internet, effectively using the server as a proxy to access restricted resources. This could include accessing sensitive configuration files, internal services, or even executing commands on the server itself, depending on the configuration and security measures in place. The ease of exploitation makes this vulnerability a significant threat to organizations using the affected products.

The real-world impact of this vulnerability can be severe, particularly for organizations that rely on these Ivanti products for secure access and policy enforcement. Unauthorized access to internal resources can lead to data breaches, loss of sensitive information, and potential regulatory penalties. Additionally, the exploitation of this vulnerability could facilitate further attacks, such as lateral movement within a network, allowing attackers to escalate privileges or deploy malware. The business risks associated with such incidents include reputational damage, financial loss, and the costs associated with incident response and remediation efforts.

To detect and mitigate this vulnerability, organizations should implement a multi-faceted approach. Regular vulnerability assessments and penetration testing can help identify potential weaknesses in their systems. Additionally, monitoring network traffic for unusual patterns or unauthorized access attempts can provide early warning signs of exploitation. Organizations should also ensure that their systems are updated to the latest versions, as vendors typically release patches to address known vulnerabilities. Implementing strict input validation and output encoding practices can further reduce the risk of SSRF attacks by ensuring that user-supplied data is properly sanitized before being processed by the server.

In conclusion, the server-side request forgery vulnerability in the SAML component of Ivanti products poses a significant threat to organizations that utilize these systems. The potential for unauthorized access to sensitive resources, combined with the ease of exploitation, underscores the importance of proactive security measures. By adopting comprehensive detection and mitigation strategies, organizations can better protect themselves against this and similar vulnerabilities, ensuring the integrity and confidentiality of their systems and data.

CSURFACE threat intelligence has detected a slight increase in activity exploiting the SSRF vulnerability identified as CVE-2024-21893 in Ivanti Connect Secure and related products. This uptick coincides with the continued availability of multiple proof-of-concept exploits and a Metasploit module that chains this SSRF flaw with a command injection vulnerability, facilitating unauthenticated remote code execution. While the overall exploitation trend remains stable, the presence of these publicly accessible tools lowers the barrier for adversaries, including ransomware-affiliated groups, to leverage this vulnerability in targeted attacks. Consequently, the risk profile for affected organizations has intensified, underscoring the urgency for defenders to maintain vigilant monitoring. Although no new ransomware campaigns have been definitively linked to this vulnerability since the last update, the persistent association with known ransomware actors keeps this threat vector highly relevant in the current landscape.

Update 2 — July 03, 2026

CSURFACE threat intelligence has detected a marked escalation in exploitation attempts targeting CVE-2024-21893, with telemetry indicating a significant uptick in adversary activity leveraging this SSRF vulnerability. This increase coincides with the wider availability of new proof-of-concept exploit tools and an updated Metasploit module that chains CVE-2024-21893 with CVE-2024-21887 to achieve unauthenticated remote code execution. The enhanced accessibility of these tools lowers the technical barrier for threat actors, including ransomware-affiliated groups, to conduct successful intrusions against vulnerable Ivanti Connect Secure and Policy Secure deployments. Although the overall exploitation trend remains stable, the sharp rise in detection events signals growing attacker interest and operational use. This development elevates the threat level, reinforcing the vulnerability’s criticality in the current threat landscape and underscoring the need for heightened vigilance among defenders monitoring for exploitation attempts.

Update 3 — July 11, 2026

CSURFACE threat intelligence has detected a marked escalation in exploitation attempts targeting the SSRF vulnerability in Ivanti Connect Secure and related products. This surge in activity coincides with the wider availability of new proof-of-concept exploit toolkits that combine CVE-2024-21893 with adjacent vulnerabilities to facilitate unauthenticated remote code execution. Our telemetry indicates that threat actors, including ransomware-affiliated groups, are increasingly leveraging these tools to gain unauthorized access to restricted resources. Although the overall exploitation trend remains stable according to EPSS metrics, the sharp rise in detection events on our sensors signals a growing operational focus on this vulnerability. This development elevates the risk profile for organizations running vulnerable Ivanti versions, as the enhanced exploit accessibility lowers the technical barrier for attackers and increases the likelihood of successful intrusions. Consequently, the threat level associated with CVE-2024-21893 should be considered heightened, reflecting both the intensifying adversary interest and the expanding toolkit ecosystem supporting exploitation efforts.

Update 4 — July 20, 2026

CSURFACE threat intelligence has detected a marked escalation in exploitation attempts targeting CVE-2024-21893, coinciding with the emergence of additional publicly available proof-of-concept exploits and an updated Metasploit module that chains this SSRF vulnerability with a related command injection flaw. This expanded exploit ecosystem significantly lowers the technical barriers for adversaries, enabling a broader range of threat actors—including ransomware groups previously linked to this vulnerability—to operationalize attacks more efficiently. Although EPSS scores remain stable, the surge in detection events on our sensors reflects increased attacker focus and active exploitation campaigns in the wild. This development elevates the threat level for organizations running vulnerable Ivanti Connect Secure and Policy Secure versions, as the likelihood of successful unauthenticated access and subsequent compromise has grown. Defenders should consider the risk profile heightened due to both the intensification of adversary activity and the growing availability of sophisticated exploitation tools.