VDB-180879 · CVE-2021-21815 · TALOS-2021-1280

AT&T Xmill 0.7 Command Line HandleFileArg filepattern stack-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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in AT&T Xmill 0.7. The affected element is the function HandleFileArg of the component Command Line Handler. Performing a manipulation of the argument filepattern results in stack-based overflow. This vulnerability is cataloged as CVE-2021-21815. There is no exploit available.

Detailsinfo

A vulnerability was found in AT&T Xmill 0.7. It has been classified as critical. This affects the function HandleFileArg of the component Command Line Handler. The manipulation of the argument filepattern with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 08/14/2021 as TALOS-2021-1280. It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2021-21815. Technical details of the vulnerability are known, but there is no available exploit.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

AT&T

Name

Xmill

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
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

01/04/2021 🔍
08/14/2021 +221 days 🔍
08/14/2021 +0 days 🔍
08/18/2021 +4 days 🔍

Sourcesinfo

Advisory: TALOS-2021-1280
Status: Not defined

CVE: CVE-2021-21815 (🔍)
GCVE (CVE): GCVE-0-2021-21815
GCVE (VulDB): GCVE-100-180879

Entryinfo

Created: 08/14/2021 08:41
Updated: 08/18/2021 13:28
Changes: 08/14/2021 08:41 (39), 08/18/2021 13:28 (2)
Complete: 🔍
Cache ID: 216::103