VDB-165935 · CVE-2020-26261 · GCVE-0-2020-26261

JupyterHub jupyterhub-systemdspawner up to 0.14 API Token exposure of resource

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in JupyterHub jupyterhub-systemdspawner up to 0.14. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component API Token Handler. The manipulation leads to exposure of resource. This vulnerability is referenced as CVE-2020-26261. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in JupyterHub jupyterhub-systemdspawner up to 0.14. This issue affects an unknown function of the component API Token Handler. The manipulation with an unknown input leads to a exposure of resource vulnerability. Using CWE to declare the problem leads to CWE-668. The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. Impacted is confidentiality, integrity, and availability.

The weakness was published 12/09/2020. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2020-26261. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 0.15 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be patching the affected component.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

JupyterHub

Name

jupyterhub-systemdspawner

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Exposure of resource
CWE: CWE-668 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: jupyterhub-systemdspawner 0.15
Patch: github.com

Timelineinfo

10/01/2020 🔍
12/09/2020 +69 days 🔍
12/09/2020 +0 days 🔍
12/15/2020 +6 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-26261 (🔍)
GCVE (CVE): GCVE-0-2020-26261
GCVE (VulDB): GCVE-100-165935

Entryinfo

Created: 12/09/2020 21:48
Updated: 12/15/2020 09:48
Changes: 12/09/2020 21:48 (40), 12/15/2020 09:44 (6), 12/15/2020 09:48 (8)
Complete: 🔍
Cache ID: 216::103