VDB-216984 · CVE-2022-4812 · GCVE-0-2022-4812

usememos up to 0.9.0 comparison of object references instead of object contents

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.
7.8	$0-$5k	0.00

Summaryinfo

A vulnerability described as very critical has been identified in usememos memos up to 0.9.0. This impacts an unknown function. The manipulation results in comparison of object references instead of object contents. This vulnerability is cataloged as CVE-2022-4812. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as very critical, was found in usememos memos up to 0.9.0. Affected is an unknown code block. The manipulation with an unknown input leads to a comparison of object references instead of object contents vulnerability. CWE is classifying the issue as CWE-595. The product compares object references instead of the contents of the objects themselves, preventing it from detecting equivalent objects. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Comparison of Object References Instead of Object Contents in GitHub repository usememos/memos prior to 0.9.1.

The weakness was shared 12/28/2022. The advisory is shared for download at huntr.dev. This vulnerability is traded as CVE-2022-4812 since 12/28/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/25/2023).

Upgrading to version 0.9.1 eliminates this vulnerability. Applying the patch 3556ae4e651d9443dc3bb8a170dd3cc726517a53 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

Vendor

usememos

Name

memos

Version

License

open-source

Website

Product: https://github.com/usememos/memos/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (huntr.dev): 🔍

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: 🔍

Exploitinginfo

Class: Comparison of object references instead of object contents
CWE: CWE-595
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: memos 0.9.1
Patch: 3556ae4e651d9443dc3bb8a170dd3cc726517a53

Timelineinfo

12/28/2022 🔍
12/28/2022 +0 days 🔍
12/28/2022 +0 days 🔍
01/25/2023 +28 days 🔍

Sourcesinfo

Product: github.com

Advisory: 3556ae4e651d9443dc3bb8a170dd3cc726517a53
Status: Confirmed

CVE: CVE-2022-4812 (🔍)
GCVE (CVE): GCVE-0-2022-4812
GCVE (VulDB): GCVE-100-216984

Entryinfo

Created: 12/28/2022 16:39
Updated: 01/25/2023 22:20
Changes: 12/28/2022 16:39 (50), 01/25/2023 22:06 (1), 01/25/2023 22:20 (11)
Complete: 🔍
Cache ID: 216::103