CVE-2020-4233Network attack vector

Session cookie disclosure via missing Secure flag

Published May 28, 2020 · Updated Sep 17, 2024

Information disclosure in IBM Security Identity Governance and Intelligence 5.2.6 allows remote attackers to capture session cookies. In SSL mode, the application creates its session cookie without the Secure attribute, allowing a browser to transmit it in an unencrypted HTTP request. Exploitation requires interception of that HTTP transmission, and the exposed cookie reveals sensitive session information without altering data or service availability.

CVSS severity3.7
Low
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM Security Identity Governance and Intelligence 5.2.6 allows remote attackers to capture session cookies. In SSL mode, the application creates its session cookie without the Secure attribute, allowing a browser to transmit it in an unencrypted HTTP request. Exploitation requires interception of that HTTP transmission, and the exposed cookie reveals sensitive session information without altering data or service availability.

The record

CVE
CVE-2020-4233
Published
May 28, 2020
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Security Identity Governance and Intelligence
Classifications
CWE-311, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=5.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Security Identity Governance and Intelligenceversion=5.2.6

Published CVSS scores

3.2IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C
3.7IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

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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-311Missing Encryption of Sensitive Data
T1539Steal 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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