VDB-125897 · CVE-2018-18328 · BID 105757

Trend Micro Antivirus 7.0 on Mac KERedirect null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Trend Micro Antivirus 7.0 on Mac. This affects the function KERedirect. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2018-18328. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Trend Micro Antivirus 7.0 on Mac (Anti-Malware Software) and classified as critical. This issue affects the function KERedirect. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. The issue results from the lack of proper validation function on 0x6F6A offset user-supplied buffer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The bug was discovered 10/19/2018. The weakness was disclosed 10/23/2018 (Website). The advisory is shared at esupport.trendmicro.com. The identification of this vulnerability is CVE-2018-18328 since 10/15/2018. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105757†). The entries VDB-125882, VDB-125883, VDB-125896 and VDB-125898 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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

10/15/2018 🔍
10/19/2018 +4 days 🔍
10/22/2018 +3 days 🔍
10/23/2018 +0 days 🔍
10/23/2018 +0 days 🔍
10/24/2018 +1 days 🔍
04/06/2020 +530 days 🔍

Sourcesinfo

Vendor: trendmicro.com

Advisory: esupport.trendmicro.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-18328 (🔍)
GCVE (CVE): GCVE-0-2018-18328
GCVE (VulDB): GCVE-100-125897
SecurityFocus: 105757 - Trend Micro Antivirus Multiple Local Privilege Escalation Vulnerabilities

See also: 🔍

Entryinfo

Created: 10/24/2018 06:46
Updated: 04/06/2020 10:04
Changes: 10/24/2018 06:46 (62), 04/06/2020 10:04 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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