CVE-2020-4274Public exploitNetwork attack vector

Authenticated Forensics access via trusted QRIF cookie

Published Apr 15, 2020 · Updated Sep 16, 2024

Authorization bypass in IBM QRadar SIEM 7.3.0 through 7.3.3 Patch 2 allows remote authenticated users to access Forensics features. The LoginCurrentUser() method trusts a QRIF cookie matching the SEC session cookie and returns before LoginUser() checks Forensics permission. Any authenticated account can therefore read Forensics data and use most application functions without the assigned Forensics role; session validation still applies.

CVSS severity5.4
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in IBM QRadar SIEM 7.3.0 through 7.3.3 Patch 2 allows remote authenticated users to access Forensics features. The LoginCurrentUser() method trusts a QRIF cookie matching the SEC session cookie and returns before LoginUser() checks Forensics permission. Any authenticated account can therefore read Forensics data and use most application functions without the assigned Forensics role; session validation still applies.

The record

CVE
CVE-2020-4274
Published
Apr 15, 2020
Updated
Sep 16, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:N
5.4IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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