Zillya! Antivirus 3.0.2230.0 Driver zef.sys input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Zillya! Antivirus 3.0.2230.0. It has been classified as critical. Impacted is an unknown function in the library zef.sys of the component Driver. The manipulation leads to input validation. This vulnerability is documented as CVE-2018-5957. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in Zillya! Antivirus 3.0.2230.0 (Anti-Malware Software) and classified as critical. This issue affects an unknown code block in the library zef.sys of the component Driver. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Zillya! Antivirus 3.0.2230.0, the driver file (zef.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C40242C.

The bug was discovered 01/19/2018. The weakness was released 01/21/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-5957 since 01/21/2018. Attacking locally is a requirement. The requirement for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/26/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

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

Entries connected to this vulnerability are available at VDB-112272 and VDB-112270. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/19/2018 🔍
01/21/2018 +2 days 🔍
01/21/2018 +0 days 🔍
01/21/2018 +0 days 🔍
01/22/2018 +1 days 🔍
12/26/2019 +703 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2018-5957 (🔍)
GCVE (CVE): GCVE-0-2018-5957
GCVE (VulDB): GCVE-100-112271
See also: 🔍

Entryinfo

Created: 01/22/2018 07:51
Updated: 12/26/2019 11:31
Changes: 01/22/2018 07:51 (60), 12/26/2019 11:31 (1)
Complete: 🔍
Cache ID: 216:0DB:103

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

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