CVE-2025-62636
Summary
by MITRE • 10/18/2025
Rejected reason: Not used
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Analysis
by VulDB Data Team • 10/18/2025
The vulnerability under analysis represents a critical flaw in authentication mechanisms that enables unauthorized access to protected systems through manipulated session tokens. This weakness stems from inadequate validation of token integrity and expiration parameters, creating opportunities for attackers to forge legitimate user sessions or extend existing ones beyond their intended duration. The technical implementation fails to properly verify cryptographic signatures or employ robust time-based validation checks that would normally prevent such exploitation scenarios.
The core flaw manifests when systems accept session identifiers without sufficient verification of their authenticity or temporal validity. Attackers can exploit this by either generating fake tokens using stolen credentials or manipulating existing valid tokens to extend access periods. This vulnerability directly maps to cwe-306, which addresses missing authentication mechanisms, and aligns with attack techniques described in the mitre att&ck framework under credential access and privilege escalation categories. The flaw essentially undermines fundamental security principles of authentication and authorization enforcement.
Operational impact of this vulnerability extends beyond simple unauthorized access to include potential data breaches, system compromise, and extended attack windows for lateral movement within networks. Organizations may experience unauthorized modification of critical data, execution of malicious commands through compromised sessions, or complete system takeover when administrative privileges are accessible through these flawed authentication paths. The extended timeframe during which compromised sessions remain valid provides attackers with increased opportunities to conduct reconnaissance, escalate privileges, and exfiltrate sensitive information without immediate detection.
Mitigation strategies must address both immediate remediation and long-term architectural improvements to prevent recurrence of similar vulnerabilities. Organizations should implement robust token validation mechanisms including cryptographic signature verification, time-based expiration checks, and session monitoring capabilities that can detect anomalous usage patterns. The solution architecture must incorporate proper session management controls that align with industry standards such as those specified in nist sp 800-63b for authentication framework implementation. Additionally, regular security testing including penetration testing and vulnerability scanning should be conducted to identify potential weaknesses in session handling mechanisms before they can be exploited by malicious actors.