What’s Vulnerable › Vulnerabilities

CVE-2023-38357

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-01 · updated 2026-06-17
• Weakness: CWE-331

Description

Session tokens in RWS WorldServer 11.7.3 and earlier have a low entropy and can be enumerated, leading to unauthorized access to user sessions.

Affected products

• Rws Worldserver: before 11.8.0 — fixed in 11.8.0

How to fix

Upgrade to a fixed version: Rws Worldserver 11.8.0. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/173609/RWS-WorldServer-11.7.3-Session-Token-Enumeration.html
• http://seclists.org/fulldisclosure/2023/Jul/30
• https://www.redteam-pentesting.de/en/advisories/rt-sa-2023-001/-session-token-enumeration-in-rws-worldserver
• http://packetstormsecurity.com/files/173609/RWS-WorldServer-11.7.3-Session-Token-Enumeration.html
• http://seclists.org/fulldisclosure/2023/Jul/30
• https://www.redteam-pentesting.de/en/advisories/rt-sa-2023-001/-session-token-enumeration-in-rws-worldserver

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