Tenda AC7/AC9/AC10 Web Server POST Request memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Tenda AC7, AC9 and AC10. This impacts an unknown function of the component Web Server. This manipulation as part of POST Request causes memory corruption. This vulnerability is tracked as CVE-2018-14557. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Tenda AC7, AC9 and AC10 (version now known) and classified as critical. Affected by this vulnerability is some unknown processing of the component Web Server. The manipulation as part of a POST Request leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.

The weakness was disclosed 04/25/2019. This vulnerability is known as CVE-2018-14557 since 07/23/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

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

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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

07/23/2018 🔍
04/25/2019 +276 days 🔍
04/26/2019 +1 days 🔍
09/07/2023 +1595 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2018-14557 (🔍)
GCVE (CVE): GCVE-0-2018-14557
GCVE (VulDB): GCVE-100-134077
See also: 🔍

Entryinfo

Created: 04/26/2019 07:55
Updated: 09/07/2023 09:37
Changes: 04/26/2019 07:55 (37), 06/02/2020 12:10 (17), 09/07/2023 09:37 (3)
Complete: 🔍
Cache ID: 216::103

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