VDB-245134 · CVE-2023-27882 · TALOS-2023-1733

Weston Embedded Cesium NET/uC-HTTP HTTP Server heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
8.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Weston Embedded Cesium NET and uC-HTTP. Affected is an unknown function of the component HTTP Server. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2023-27882. The attack may be launched remotely. There is no exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability classified as critical was found in Weston Embedded Cesium NET and uC-HTTP (affected version unknown). This vulnerability affects an unknown functionality of the component HTTP Server. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.

The weakness was shared 11/14/2023 as TALOS-2023-1733. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2023-27882 since 03/22/2023. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem.

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Productinfo

Vendor

Weston Embedded

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.0
CNA Vector (Talos): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / 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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/22/2023 🔍
11/14/2023 +237 days 🔍
11/14/2023 +0 days 🔍
12/08/2023 +24 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1733
Status: Confirmed

CVE: CVE-2023-27882 (🔍)
GCVE (CVE): GCVE-0-2023-27882
GCVE (VulDB): GCVE-100-245134

Entryinfo

Created: 11/14/2023 11:14
Updated: 12/08/2023 09:28
Changes: 11/14/2023 11:14 (48), 12/08/2023 09:28 (12)
Complete: 🔍
Cache ID: 216::103