CVE-2025-36591 in Elastic Cloud Storage
Summary
by MITRE • 09/16/2026
Dell ECS versions 3.8.1.0 through 3.8.1.7, and Dell ObjectScale versions prior to 4.4.0.0, contains an Use of a Broken or Risky Cryptographic Algorithm vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Information exposure.
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Analysis
by VulDB Data Team • 09/16/2026
The identified security flaw resides within the cryptographic implementation of Dell ECS versions ranging from 3.8.1.0 through 3.8.1.7 and Dell ObjectScale versions prior to release 4.4.0.0. This vulnerability is classified as an Use of a Broken or Risky Cryptographic Algorithm, which corresponds directly to CWE-327 in the Common Weakness Enumeration taxonomy. The core issue stems from the utilization of cryptographic primitives that are either deprecated, weak against modern computational attacks, or fail to meet current industry standards for data protection. In many such scenarios, this involves the use of algorithms like MD5 or SHA1 for integrity checks or hashing operations where collision resistance is critical, or potentially weaker symmetric encryption modes if applicable to internal communications or storage layer security mechanisms within these specific software versions.
The operational impact of this vulnerability is primarily centered on information exposure and potential compromise of data integrity. Because the cryptographic algorithm employed does not provide sufficient entropy or resistance against cryptanalysis, an attacker with high privileges and local access can potentially reverse-engineer hashed values or manipulate encrypted payloads to extract sensitive information. This could include accessing internal configuration details, user credentials stored in hash form, or other proprietary data structures protected by these weak algorithms. The requirement for a high privileged account with local access limits the attack vector significantly compared to remote exploitation scenarios, but it remains critical because compromised administrative accounts often serve as the pivot point for deeper network intrusions and lateral movement within an enterprise infrastructure.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to Credential Access or Defense Evasion depending on how the weak cryptography is leveraged by an attacker. If used for password storage, it facilitates credential dumping through offline cracking attacks that are computationally feasible due to the algorithm's weaknesses. If used for integrity verification, it may allow attackers to bypass security controls by crafting valid-looking but maliciously altered data structures. The presence of such a flaw indicates a gap in the secure development lifecycle where cryptographic agility and adherence to NIST guidelines were not strictly enforced during the design or update phases of these software releases.
To mitigate this risk, organizations running affected versions must prioritize immediate patching to Dell ECS 3.8.1.7 with appropriate security updates or upgrade to Dell ObjectScale version 4.4.0.0 and later where the cryptographic implementations have been remediated. In addition to applying vendor patches, administrators should audit system configurations to ensure no fallback mechanisms are enabled that might revert to weaker algorithms under certain conditions. It is also recommended to implement strict access controls for local high-privileged accounts to reduce the attack surface available to potential insiders or attackers who have gained initial foothold via other means. Regular cryptographic audits and adherence to current standards such as FIPS 140-3 where applicable will help prevent similar vulnerabilities in future deployments.