VDB-246387 · CVE-2023-49091 · GHSA-hpvm-x7m8-3c6x

azukaar Cosmos-Server up to 0.12.x Authorization Header session expiration

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.
9.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as very critical, has been found in azukaar Cosmos-Server up to 0.12.x. This impacts an unknown function of the component Authorization Header Handler. Performing a manipulation results in session expiration. This vulnerability is reported as CVE-2023-49091. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in azukaar Cosmos-Server up to 0.12.x. This affects an unknown functionality of the component Authorization Header Handler. The manipulation with an unknown input leads to a session expiration vulnerability. CWE is classifying the issue as 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." This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. Cosmos-server is vulnerable due to to the authorization header used for user login remaining valid and not expiring after log out. This vulnerability allows an attacker to use the token to gain unauthorized access to the application/system even after the user has logged out. This issue has been patched in version 0.13.0.

The weakness was disclosed 11/30/2023 as GHSA-hpvm-x7m8-3c6x. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-49091 since 11/21/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/22/2025).

Upgrading to version 0.13.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

azukaar

Name

Cosmos-Server

Version

Website

Product: https://github.com/azukaar/Cosmos-Server/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 9.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub, Inc.): 🔍

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: 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: 🔍

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: Cosmos-Server 0.13.0

Timelineinfo

11/21/2023 🔍
11/30/2023 +9 days 🔍
11/30/2023 +0 days 🔍
04/21/2025 +508 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-hpvm-x7m8-3c6x
Status: Confirmed

CVE: CVE-2023-49091 (🔍)
GCVE (CVE): GCVE-0-2023-49091
GCVE (VulDB): GCVE-100-246387

Entryinfo

Created: 11/30/2023 06:56
Updated: 04/21/2025 02:48
Changes: 11/30/2023 06:56 (50), 12/20/2023 12:31 (11), 01/22/2025 01:14 (16), 04/21/2025 02:48 (3)
Complete: 🔍
Cache ID: 216::103