CVE-2019-4617

Session hijacking via unrenewed authentication session variable

Published Mar 16, 2020 · Updated Sep 16, 2024

Session fixation in IBM Cloud Automation Manager 3.2.1.0 allows attackers to hijack authenticated sessions through a known cookie. The authentication flow retains the pre-login session variable instead of issuing a fresh value after successful authentication. Exploitation requires a victim to authenticate using a cookie already known to the attacker, after which that authenticated session can be reused.

CVSS severity5.9
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in IBM Cloud Automation Manager 3.2.1.0 allows attackers to hijack authenticated sessions through a known cookie. The authentication flow retains the pre-login session variable instead of issuing a fresh value after successful authentication. Exploitation requires a victim to authenticate using a cookie already known to the attacker, after which that authenticated session can be reused.

The record

CVE
CVE-2019-4617
Published
Mar 16, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Cloud Automation Manager
Classifications
CWE-384, T1550.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 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?

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  1. Affected versionversion=3.2.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Cloud Automation Managerversion=3.2.1.0

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:N
5.9IBM CorporationCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-384Session Fixation
T1550.004Web 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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