VDB-239912 · CVE-2023-26143 · EUVD-2023-2444

blamer up to 1.0.3 Command-Line Flag blameByFile argument injection

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	0.84

Summaryinfo

A vulnerability categorized as critical has been discovered in blamer up to 1.0.3. This affects the function blameByFile of the component Command-Line Flag Handler. Such manipulation leads to argument injection. This vulnerability is uniquely identified as CVE-2023-26143. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in blamer up to 1.0.3. It has been rated as critical. Affected by this issue is the function blameByFile of the component Command-Line Flag Handler. The manipulation with an unknown input leads to a argument injection vulnerability. Using CWE to declare the problem leads to CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Versions of the package blamer before 1.0.4 are vulnerable to Arbitrary Argument Injection via the blameByFile() API. The library does not sanitize for user input or validate the given file path conforms to a specific schema, nor does it properly pass command-line flags to the git binary using the double-dash POSIX characters (--) to communicate the end of options.

The weakness was disclosed 09/19/2023 as 0965877f115753371a2570f10a63c455d2b2cde3. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-26143 since 02/20/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 1.0.4 eliminates this vulnerability. Applying the patch 0965877f115753371a2570f10a63c455d2b2cde3 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-2444). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

blamer

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Snyk): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Argument injection
CWE: CWE-88 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: blamer 1.0.4
Patch: 0965877f115753371a2570f10a63c455d2b2cde3

Timelineinfo

02/20/2023 🔍
09/19/2023 +210 days 🔍
09/19/2023 +0 days 🔍
09/27/2025 +739 days 🔍

Sourcesinfo

Advisory: 0965877f115753371a2570f10a63c455d2b2cde3
Status: Confirmed

CVE: CVE-2023-26143 (🔍)
GCVE (CVE): GCVE-0-2023-26143
GCVE (VulDB): GCVE-100-239912
EUVD: 🔍

Entryinfo

Created: 09/19/2023 10:23
Updated: 09/27/2025 05:10
Changes: 09/19/2023 10:23 (53), 10/12/2023 20:57 (11), 09/27/2025 05:10 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.