VDB-188458 · CVE-2021-45099 · GCVE-0-2021-45099

addon-ssh up to 9.x addon.stdin Service privilege escalation ⚔ [Disputed]

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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in addon-ssh up to 9.x and classified as problematic. The affected element is an unknown function of the component addon.stdin Service. Executing a manipulation can lead to an unknown weakness. This vulnerability appears as CVE-2021-45099. There is no available exploit. There are still doubts about whether this vulnerability truly exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in addon-ssh up to 9.x (SSH Server Software). It has been declared as problematic. This vulnerability affects an unknown code of the component addon.stdin Service. The impact remains unknown.

The weakness was presented 12/16/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-45099 since 12/16/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The real existence of this vulnerability is still doubted at the moment.

Upgrading to version 10.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

SSH Server Software

Name

addon-ssh

Version

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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: Privilege escalation
CWE: Unknown
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: addon-ssh 10.0.0

Timelineinfo

12/16/2021 🔍
12/16/2021 +0 days 🔍
12/16/2021 +0 days 🔍
05/02/2025 +1233 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Disputed: 🔍

CVE: CVE-2021-45099 (🔍)
GCVE (CVE): GCVE-0-2021-45099
GCVE (VulDB): GCVE-100-188458

Entryinfo

Created: 12/16/2021 09:50
Updated: 05/02/2025 14:17
Changes: 12/16/2021 09:50 (39), 12/22/2021 14:08 (1), 08/04/2024 07:34 (34), 05/02/2025 14:17 (3)
Complete: 🔍
Cache ID: 216::103