CVE-2024-27156

Session hijacking via clear-text authentication logs

Published Jun 14, 2024 · Updated Feb 13, 2025

Information disclosure in Toshiba Tec e-STUDIO MFPs allows local users to steal authentication sessions from clear-text device logs. The logging path writes session cookies used for authentication into log files without protecting their values. Access to the multifunction device and its logs is required; exposed cookies enable session reuse and authentication bypass.

CVSS severity6.8
Medium
EPSS probability0.44%
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 Toshiba Tec e-STUDIO MFPs allows local users to steal authentication sessions from clear-text device logs. The logging path writes session cookies used for authentication into log files without protecting their values. Access to the multifunction device and its logs is required; exposed cookies enable session reuse and authentication bypass.

The record

CVE
CVE-2024-27156
Published
Jun 14, 2024
Updated
Feb 13, 2025
Vendor
Toshiba Tec Corporation
Product
Toshiba Tec e-STUDIO
Classifications
CWE-532, T1539
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record 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=see the reference URL

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Toshiba Tec Corporation · Toshiba Tec e-STUDIOversion=see the reference URL

Published CVSS scores

6.8Toshiba CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
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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