VDB-229783 · CVE-2023-31761 · EUVD-2023-36052

Blitzwolf BW-IS22 1.0 authentication replay

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Blitzwolf BW-IS22 1.0. This issue affects some unknown processing. This manipulation causes authentication replay. This vulnerability appears as CVE-2023-31761. There is no available exploit.

Detailsinfo

A vulnerability has been found in Blitzwolf BW-IS22 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a authentication replay vulnerability. The CWE definition for the vulnerability is CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Weak security in the transmitter of Blitzwolf BW-IS22 Smart Home Security Alarm v1.0 allows attackers to gain full access to the system via a code replay attack.

The weakness was presented 05/24/2023. It is possible to read the advisory at ashallen.net. This vulnerability is known as CVE-2023-31761 since 04/29/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1040 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-36052). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Blitzwolf

Name

BW-IS22

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA 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: 🔍

Exploitinginfo

Class: Authentication replay
CWE: CWE-294 / CWE-287
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

04/29/2023 🔍
05/24/2023 +25 days 🔍
05/24/2023 +0 days 🔍
12/28/2025 +949 days 🔍

Sourcesinfo

Advisory: ashallen.net
Status: Not defined

CVE: CVE-2023-31761 (🔍)
GCVE (CVE): GCVE-0-2023-31761
GCVE (VulDB): GCVE-100-229783
EUVD: 🔍

Entryinfo

Created: 05/24/2023 07:42
Updated: 12/28/2025 07:08
Changes: 05/24/2023 07:42 (37), 06/16/2023 17:14 (9), 01/18/2025 02:22 (24), 12/28/2025 07:08 (1)
Complete: 🔍
Cache ID: 216::103