Lansweeper lsrunase 2.0 and lsencrypt 2.0 use RC4 encryption with a hardcoded 142-byte static key array to encrypt credentials. An 8-character prefix is stored in cleartext alongside the ciphertext. This allows an attacker with local access to recover any encrypted password to plaintext using a single SHA-1 hash and RC4 decryption operation, with no brute force required.
Metrics
Affected Vendors & Products
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References
History
Fri, 26 Jun 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Local Credential Disclosure via Hardcoded RC4 Key in Lansweeper lsrunase 2.0 and lsencrypt 2.0 | |
| Weaknesses | CWE-327 CWE-330 |
Fri, 26 Jun 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Lansweeper lsrunase 2.0 and lsencrypt 2.0 use RC4 encryption with a hardcoded 142-byte static key array to encrypt credentials. An 8-character prefix is stored in cleartext alongside the ciphertext. This allows an attacker with local access to recover any encrypted password to plaintext using a single SHA-1 hash and RC4 decryption operation, with no brute force required. | |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-26T20:43:01.496Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-39031
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
Updated: 2026-06-26T22:45:05Z