CVE-2024-35178Network attack vector

NTLMv2 hash disclosure via unrestricted file paths

Published Jun 6, 2024 · Updated Aug 2, 2024

Information disclosure in Project Jupyter Jupyter Server before 2.14.1 allows remote attackers to obtain the Windows user's NTLMv2 hash. FileFindHandler passes an attacker-supplied absolute or traversal path to filefind, which checks the referenced Windows file before confirming it lies under an allowed root. An unauthenticated request can therefore make the server access an attacker-controlled UNC share, exposing a relayable hash that can also be cracked for credential reuse.

CVSS severity7.5
High
EPSS probability0.70%
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 Project Jupyter Jupyter Server before 2.14.1 allows remote attackers to obtain the Windows user's NTLMv2 hash. FileFindHandler passes an attacker-supplied absolute or traversal path to filefind, which checks the referenced Windows file before confirming it lies under an allowed root. An unauthenticated request can therefore make the server access an attacker-controlled UNC share, exposing a relayable hash that can also be cracked for credential reuse.

The record

CVE
CVE-2024-35178
Published
Jun 6, 2024
Updated
Aug 2, 2024
Vendor
Project Jupyter
Product
Jupyter Server
Classifications
CWE-200, T1187
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0.0.1 <2.14.1
  2. Affected versionversion=< 2.14.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Project Jupyter · Jupyter Serverversion=0.0.1 <2.14.1; version=< 2.14.1

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1187Forced Authentication

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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