CVE-2023-37504Network attack vector

User impersonation via persistent logged-out sessions

Published Oct 19, 2023 · Updated Sep 12, 2024

Session expiration failure in HCL Compass 2.0 through 2.2 allows attackers to impersonate users by replaying a logged-out session ID. The logout path leaves the authenticated server-side session valid instead of revoking it, so the same identifier continues to authorize requests. Exploitation requires discovery of a user's session identifier and grants the permissions already assigned to that user.

CVSS severity7.1
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session expiration failure in HCL Compass 2.0 through 2.2 allows attackers to impersonate users by replaying a logged-out session ID. The logout path leaves the authenticated server-side session valid instead of revoking it, so the same identifier continues to authorize requests. Exploitation requires discovery of a user's session identifier and grants the permissions already assigned to that user.

The record

CVE
CVE-2023-37504
Published
Oct 19, 2023
Updated
Sep 12, 2024
Vendor
HCL Software
Product
HCL Compass
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0
  2. Affected versionversion=2.0, 2.1, 2.2
  3. Affected versionversion=2.1
  4. Affected versionversion=2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Software · HCL Compassversion=2.0; version=2.0, 2.1, 2.2; version=2.1; version=2.2

Published CVSS scores

7.1HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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