Asus RT-AX56U V2/RT-AC86U Syslog logmessage_normal format string

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Asus RT-AX56U V2 and RT-AC86U and classified as critical. Impacted is the function logmessage_normal of the component Syslog. Performing a manipulation results in format string. This vulnerability is cataloged as CVE-2023-35086. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Asus RT-AX56U V2 and RT-AC86U (the affected version unknown). This affects the function logmessage_normal of the component Syslog. The manipulation with an unknown input leads to a format string vulnerability. CWE is classifying the issue as CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. An unauthenticated remote attacker without privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service. This issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.

The weakness was shared 07/21/2023. This vulnerability is uniquely identified as CVE-2023-35086 since 06/13/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/15/2023).

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

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

CNA Base Score: 9.8
CNA Vector (TWCERT/CC): 🔍

CVSSv2info

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

Exploitinginfo

Class: Format string
CWE: CWE-134 / 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

06/13/2023 🔍
07/21/2023 +38 days 🔍
07/21/2023 +0 days 🔍
08/15/2023 +25 days 🔍

Sourcesinfo

Vendor: asus.com

Advisory: twcert.org.tw
Status: Not defined

CVE: CVE-2023-35086 (🔍)
GCVE (CVE): GCVE-0-2023-35086
GCVE (VulDB): GCVE-100-235119

Entryinfo

Created: 07/21/2023 09:32
Updated: 08/15/2023 15:47
Changes: 07/21/2023 09:32 (37), 08/15/2023 15:42 (1), 08/15/2023 15:47 (12)
Complete: 🔍
Cache ID: 216::103

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