CVE-2024-27157Public exploit

Authentication bypass via world-readable session logs

Published Jun 14, 2024 · Updated Feb 13, 2025

Sensitive-data exposure in Toshiba Tec e-STUDIO MFPs allows local users to steal authentication sessions from device logs. The HTTP service writes SessionID and cookie values into world-readable files under /ramdisk/al/network/log instead of filtering sensitive data. No appliance account is required; recovered sessions permit authentication bypass, while remote retrieval requires chaining a separate file-read or code-execution flaw.

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

Sensitive-data exposure in Toshiba Tec e-STUDIO MFPs allows local users to steal authentication sessions from device logs. The HTTP service writes SessionID and cookie values into world-readable files under /ramdisk/al/network/log instead of filtering sensitive data. No appliance account is required; recovered sessions permit authentication bypass, while remote retrieval requires chaining a separate file-read or code-execution flaw.

The record

CVE
CVE-2024-27157
Published
Jun 14, 2024
Updated
Feb 13, 2025
Vendor
Toshiba Tec Corporation
Product
Toshiba Tec e-STUDIO
Classifications
CWE-532, T1552.001
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

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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 exploitPublished

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials Credentials In Files

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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