VDB-200225 · CVE-2021-35249 · Nessus 207860

SolarWinds Serv-U up to 15.3.0 Configuration access control

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.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in SolarWinds Serv-U up to 15.3.0. This vulnerability affects unknown code of the component Configuration Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2021-35249. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in SolarWinds Serv-U up to 15.3.0 (File Transfer Software). This issue affects an unknown code of the component Configuration Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality.

The weakness was published 05/18/2022. The advisory is shared at documentation.solarwinds.com. The identification of this vulnerability is CVE-2021-35249 since 06/22/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 207860 (SolarWinds Serv-U 15.0 < 15.3.1), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 15.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (207860). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

File Transfer Software

Vendor

SolarWinds

Name

Serv-U

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (SolarWinds): 🔍

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: Access control
CWE: CWE-284 / CWE-266
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: 207860
Nessus Name: SolarWinds Serv-U 15.0 < 15.3.1

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Serv-U 15.3.1

Timelineinfo

06/22/2021 🔍
05/18/2022 +330 days 🔍
05/18/2022 +0 days 🔍
09/27/2024 +863 days 🔍

Sourcesinfo

Vendor: solarwinds.com

Advisory: documentation.solarwinds.com
Status: Confirmed

CVE: CVE-2021-35249 (🔍)
GCVE (CVE): GCVE-0-2021-35249
GCVE (VulDB): GCVE-100-200225

Entryinfo

Created: 05/18/2022 11:21
Updated: 09/27/2024 23:58
Changes: 05/18/2022 11:21 (50), 05/25/2022 12:24 (1), 09/27/2024 23:58 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.