JupyterHub up to 1.4 Tab session expiration

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in JupyterHub up to 1.4. It has been declared as critical. This issue affects some unknown processing of the component Tab Handler. Such manipulation leads to session expiration. This vulnerability is referenced as CVE-2021-41247. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in JupyterHub up to 1.4 and classified as critical. Affected by this issue is some unknown processing of the component Tab Handler. The manipulation with an unknown input leads to a session expiration vulnerability. Using CWE to declare the problem leads to CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." Impacted is confidentiality, integrity, and availability.

The weakness was published 11/05/2021 as GHSA-cw7p-q79f-m2v7. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-41247 since 09/15/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.5 eliminates this vulnerability. Applying the patch 5ac9e7f73a6e1020ffddc40321fc53336829fe27 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Session expiration
CWE: CWE-613
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: JupyterHub 1.5
Patch: 5ac9e7f73a6e1020ffddc40321fc53336829fe27

Timelineinfo

09/15/2021 🔍
11/05/2021 +51 days 🔍
11/05/2021 +0 days 🔍
11/09/2021 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-cw7p-q79f-m2v7
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41247 (🔍)
GCVE (CVE): GCVE-0-2021-41247
GCVE (VulDB): GCVE-100-186080

Entryinfo

Created: 11/05/2021 10:44
Updated: 11/09/2021 20:42
Changes: 11/05/2021 10:44 (51), 11/09/2021 20:42 (2)
Complete: 🔍
Cache ID: 216::103

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