Milesight UR32L 32.3.0.5 HTTP Request vtysh_ubus firewall_handler_set index/dport buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Milesight UR32L 32.3.0.5. It has been rated as critical. Affected is the function firewall_handler_set of the file vtysh_ubus of the component HTTP Request Handler. The manipulation of the argument index/dport leads to buffer overflow. This vulnerability is uniquely identified as CVE-2023-25086. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in Milesight UR32L 32.3.0.5 and classified as critical. This issue affects the function firewall_handler_set of the file vtysh_ubus of the component HTTP Request Handler. The manipulation of the argument index/dport 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 confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the index and dport variables.

The weakness was disclosed 07/06/2023 as TALOS-2023-1716. The advisory is shared at talosintelligence.com. The identification of this vulnerability is CVE-2023-25086 since 02/02/2023. Technical details as well as a public exploit are known.

The exploit is available at talosintelligence.com. It is declared as proof-of-concept.

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

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

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.2
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 7.2
CNA Vector (Talos): 🔍

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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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

02/02/2023 🔍
07/06/2023 +153 days 🔍
07/06/2023 +0 days 🔍
11/06/2025 +854 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1716
Status: Not defined

CVE: CVE-2023-25086 (🔍)
GCVE (CVE): GCVE-0-2023-25086
GCVE (VulDB): GCVE-100-233177
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/06/2023 18:23
Updated: 11/06/2025 01:59
Changes: 07/06/2023 18:23 (54), 07/24/2023 12:49 (12), 11/06/2025 01:59 (21)
Complete: 🔍
Cache ID: 216::103

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

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