TP-LINK TL-R600VPN Management Portal Web Request input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in TP-LINK TL-R600VPN. It has been rated as problematic. The impacted element is an unknown function of the component Management Portal. Performing a manipulation as part of Web Request results in input validation. This vulnerability is known as CVE-2018-3948. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in TP-LINK TL-R600VPN (Router Operating System) (version unknown). It has been classified as problematic. This affects an unknown function of the component Management Portal. The manipulation as part of a Web Request leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

An exploitable denial-of-service vulnerability exists in the URI-parsing functionality of the TP-Link TL-R600VPN HTTP server. A specially crafted URL can cause the server to stop responding to requests, resulting in downtime for the management portal. An attacker can send either an unauthenticated or authenticated web request to trigger this vulnerability.

The bug was discovered 11/19/2018. The weakness was published 11/30/2018 (Website). The advisory is shared at talosintelligence.com. This vulnerability is uniquely identified as CVE-2018-3948 since 01/02/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-127367, VDB-127368 and VDB-127366. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/02/2018 🔍
11/19/2018 +321 days 🔍
11/30/2018 +11 days 🔍
11/30/2018 +0 days 🔍
12/01/2018 +1 days 🔍
06/12/2023 +1654 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2018-3948 (🔍)
GCVE (CVE): GCVE-0-2018-3948
GCVE (VulDB): GCVE-100-127365
See also: 🔍

Entryinfo

Created: 12/01/2018 20:12
Updated: 06/12/2023 13:23
Changes: 12/01/2018 20:12 (61), 04/16/2020 16:27 (1), 06/12/2023 13:23 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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