VDB-134577 · CVE-2019-11878 · GCVE-0-2019-11878

XiongMai Besder IP20H1 V4.02.R12.00035520.12012.047500.00200 Negative Number integer 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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in XiongMai Besder IP20H1 V4.02.R12.00035520.12012.047500.00200. This vulnerability affects unknown code. Performing a manipulation as part of Negative Number results in integer overflow. This vulnerability is reported as CVE-2019-11878. The attacker must have access to the local network to execute the attack. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in XiongMai Besder IP20H1 V4.02.R12.00035520.12012.047500.00200. This affects some unknown functionality. The manipulation as part of a Negative Number leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on XiongMai Besder IP20H1 V4.02.R12.00035520.12012.047500.00200 cameras. An attacker on the same local network as the camera can craft a message with a size field larger than 0x80000000 and send it to the camera, related to an integer overflow or use of a negative number. This then crashes the camera for about 120 seconds.

The bug was discovered 04/24/2019. The weakness was disclosed 05/10/2019. This vulnerability is uniquely identified as CVE-2019-11878 since 05/10/2019. The attack can only be initiated within the local network. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

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

XiongMai

Name

Besder IP20H1

Version

V4.02.R12.00035520.12012.047500.00200

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/24/2019 🔍
05/10/2019 +16 days 🔍
05/10/2019 +0 days 🔍
05/11/2019 +1 days 🔍
09/15/2023 +1588 days 🔍

Sourcesinfo

Advisory: blog.0x42424242.in
Status: Not defined

CVE: CVE-2019-11878 (🔍)
GCVE (CVE): GCVE-0-2019-11878
GCVE (VulDB): GCVE-100-134577

Entryinfo

Created: 05/11/2019 02:59
Updated: 09/15/2023 14:36
Changes: 05/11/2019 02:59 (53), 06/08/2020 21:18 (1), 09/15/2023 14:36 (3)
Complete: 🔍
Cache ID: 216::103