TP-LINK WR2041 v1/TL-WR2041+ HTTP Request popupSiteSurveyRpm.html ssid buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in TP-LINK WR2041 v1 and TL-WR2041+. The affected element is an unknown function of the file /userRpm/popupSiteSurveyRpm.html of the component HTTP Request Handler. Such manipulation of the argument ssid leads to buffer overflow. This vulnerability is documented as CVE-2021-26827. The attack can be executed remotely. There is not any exploit available. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TP-LINK WR2041 v1 and TL-WR2041+ (Router Operating System) (the affected version unknown). Affected by this issue is an unknown part of the file /userRpm/popupSiteSurveyRpm.html of the component HTTP Request Handler. The manipulation of the argument ssid with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability.

The weakness was released 04/15/2021. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-26827. There are known technical details, but no exploit is available.

By approaching the search of inurl:userRpm/popupSiteSurveyRpm.html it is possible to find vulnerable targets with Google Hacking.

Addressing this vulnerability is possible by firewalling .

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

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: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/05/2021 🔍
04/15/2021 +68 days 🔍
04/15/2021 +0 days 🔍
04/17/2021 +2 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: github.com
Status: Not defined

CVE: CVE-2021-26827 (🔍)
GCVE (CVE): GCVE-0-2021-26827
GCVE (VulDB): GCVE-100-173036

Entryinfo

Created: 04/15/2021 10:46
Updated: 04/17/2021 21:32
Changes: 04/15/2021 10:46 (39), 04/17/2021 21:32 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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