VDB-181759 · CVE-2021-35223 · Nessus 207858

SolarWinds Serv-U File Server Failure input validation

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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in SolarWinds Serv-U File Server. The affected element is an unknown function of the component Failure Handler. This manipulation causes input validation. The identification of this vulnerability is CVE-2021-35223. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in SolarWinds Serv-U File Server (File Transfer Software) (the affected version is unknown) and classified as critical. Affected by this vulnerability is an unknown code of the component Failure Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 08/31/2021. It is possible to read the advisory at solarwinds.com. This vulnerability is known as CVE-2021-35223. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 207858 (SolarWinds Serv-U 15.2.0 < 15.2.4), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at documentation.solarwinds.com.

The vulnerability is also documented in the vulnerability database at Tenable (207858). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

File Transfer Software

Vendor

SolarWinds

Name

Serv-U File Server

License

commercial

Website

Vendor: https://www.solarwinds.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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

Nessus ID: 207858
Nessus Name: SolarWinds Serv-U 15.2.0 < 15.2.4

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: documentation.solarwinds.com

Timelineinfo

06/22/2021 🔍
08/31/2021 +70 days 🔍
08/31/2021 +0 days 🔍
09/27/2024 +1123 days 🔍

Sourcesinfo

Vendor: solarwinds.com

Advisory: solarwinds.com
Status: Confirmed

CVE: CVE-2021-35223 (🔍)
GCVE (CVE): GCVE-0-2021-35223
GCVE (VulDB): GCVE-100-181759

Entryinfo

Created: 08/31/2021 20:56
Updated: 09/27/2024 23:58
Changes: 08/31/2021 20:56 (37), 09/03/2021 18:57 (2), 09/03/2021 19:04 (1), 09/27/2024 23:58 (16)
Complete: 🔍
Cache ID: 216::103