CVE-2018-8413
published 2018-10-10CVE-2018-8413: A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution…
PriorityP262high7.8CVSS 3.0
AVLACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
46.41%
98.7th percentile
A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
Affected
51 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_servers | — | — |
| microsoft | windows_10_servers | — | — |
| microsoft | windows_7 | — | — |
| microsoft | windows_7 | — | — |
| microsoft | windows_8.1 | — | — |
| microsoft | windows_8.1 | — | — |
| microsoft | windows_rt_8.1 | — | — |
| microsoft | windows_server_2008 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
commandpath traversal via ..\..\..\..\..\..\roaming\microsoft\windows\start menu\programs\startup\ in CAB-formatted .themepack↗
bytes↗
4D53434600000000AB010000000000002C000000000000000301010001000000000000009500000001000100930100000000000000003C508108200061612E2E5C2E2E5C2E2E5C2E2E5C2E2E5C2E2E5C726F616D696E675C6D6963726F736F66745C77696E646F77735C7374617274206D656E755C70726F6772616D735C737461727475705C6162632E6874613A2E7468656D65
- →Detect .themepack files (CAB format) containing path traversal sequences (e.g., ..\..\) in embedded filenames, particularly targeting the Startup folder path. ↗
- →Detect .themepack CAB archives containing filenames using NTFS Alternate Data Stream notation (e.g., 'filename.hta:.theme') to smuggle non-.theme file extensions past the parser. ↗
- →Monitor for unexpected file creation events (especially .hta files) in the Windows Startup directory (\roaming\microsoft\windows\start menu\programs\startup\) originating from the theme parsing process. ↗
- →Flag .themepack files whose CAB content begins with the magic bytes 4D534346 (MSCF) and contains embedded path traversal strings targeting the Startup folder. ↗
- →Alert on creation of the temp file 'themepack000.h' in the user's %TEMP% directory, which is an artifact of the PoC exploit dropper. ↗
- ·The vulnerability requires user interaction — the victim must open a specially crafted .themepack file. Drive-by exploitation without user action is not possible. ↗
- ·The parser enforces a .theme extension on dropped files, but this restriction is bypassable via NTFS Alternate Data Streams — detection logic must account for ADS-style filenames inside CAB archives. ↗
- ·The malicious .themepack must still contain a valid .theme file to pass parser validation; purely malicious archives without a legitimate .theme entry will not trigger the vulnerability. ↗
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc5.0MEDIUM
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Microsoft
Windows Theme API Remote Code Execution Vulnerability
vendor_msrc·2018-10-09·CVSS 5.0
CVE-2018-8413 [HIGH] Windows Theme API Remote Code Execution Vulnerability
Windows Theme API Remote Code Execution Vulnerability
Description: A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files.
An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
To exploit the vulnerability, a victim user must open a specially crafted file. In an email attack scenario, an att
GHSA
GHSA-g28x-287m-pqv9: A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution
ghsa_unreviewed·2022-05-13
CVE-2018-8413 [HIGH] GHSA-g28x-287m-pqv9: A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution
A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
No detection rules found.
Trendmicro
Patch Tuesday Fixes JET Database Engine, Win32K bugs
blogs_trendmicro·2018-10-10·CVSS 7.8
CVE-2018-8423 [HIGH] Patch Tuesday Fixes JET Database Engine, Win32K bugs
Exploits y vulnerabilidades
## Patch Tuesday Fixes JET Database Engine, Win32K bugs
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code.
By: Trend Micro Oct 10, 2018 Read time: ( words)
Save to Folio
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability ( CVE-2018-8423 ) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code. The vulnerability, which was rated as Important, can allow an attacker to send a specially crafted file containing data in the JET database format. When accessed on a machine, it can allow the JET database engine to execute an out-of-bounds write that would
Trendmicro
Patch Tuesday Fixes JET Database Engine, Win32K bugs
blogs_trendmicro·2018-10-10·CVSS 7.8
CVE-2018-8423 [HIGH] Patch Tuesday Fixes JET Database Engine, Win32K bugs
Exploits & Vulnerabilities
# Patch Tuesday Fixes JET Database Engine, Win32K bugs
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code.
By: Trend Micro
2018/10/10
Read time: ( words)
Save to Folio
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code. The vulnerability, which was rated as Important, can allow an attacker to send a specially crafted file containing data in the JET database format. When accessed on a machine, it can allow the JET database engine to execute an out-of-bounds write that would then
Trendmicro
Patch Tuesday Fixes JET Database Engine, Win32K bugs
blogs_trendmicro·2018-10-10·CVSS 7.8
CVE-2018-8423 [HIGH] Patch Tuesday Fixes JET Database Engine, Win32K bugs
Exploits & Vulnerabilities
## Patch Tuesday Fixes JET Database Engine, Win32K bugs
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code.
By: Trend Micro Oct 10, 2018 Read time: ( words)
Save to Folio
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability ( CVE-2018-8423 ) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code. The vulnerability, which was rated as Important, can allow an attacker to send a specially crafted file containing data in the JET database format. When accessed on a machine, it can allow the JET database engine to execute an out-of-bounds write that would t
Trendmicro
Patch Tuesday Fixes JET Database Engine, Win32K bugs
blogs_trendmicro·2018-10-10·CVSS 7.8
CVE-2018-8423 [HIGH] Patch Tuesday Fixes JET Database Engine, Win32K bugs
Exploits & Vulnerabilities
## Patch Tuesday Fixes JET Database Engine, Win32K bugs
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code.
By: Trend Micro 2018/10/10 Read time: ( words)
Save to Folio
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability ( CVE-2018-8423 ) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code. The vulnerability, which was rated as Important, can allow an attacker to send a specially crafted file containing data in the JET database format. When accessed on a machine, it can allow the JET database engine to execute an out-of-bounds write that would the
Trendmicro
Patch Tuesday Fixes JET Database Engine, Win32K bugs
blogs_trendmicro·2018-10-10·CVSS 7.8
CVE-2018-8423 [HIGH] Patch Tuesday Fixes JET Database Engine, Win32K bugs
Ausnutzung von Schwachstellen
## Patch Tuesday Fixes JET Database Engine, Win32K bugs
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability (CVE-2018-8423) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code.
By: Trend Micro Oct 10, 2018 Read time: ( words)
Save to Folio
This month’s Patch Tuesday fixes a JET Database Engine Vulnerability ( CVE-2018-8423 ) that Trend Micro’s Zero Day Initiative (ZDI) disclosed last September together with a proof of concept code. The vulnerability, which was rated as Important, can allow an attacker to send a specially crafted file containing data in the JET database format. When accessed on a machine, it can allow the JET database engine to execute an out-of-bounds write that woul
Talos
Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
blogs_talos·2018-10-09·CVSS 7.5
[HIGH] Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 49 vulnerabilities, 12 of which are rated "critical," 34 that are rated "important,” two that are considered to have “moderate” severity and one that’s rated as “low.”
The advisories cover bugs in the Chakra scripting engine, the Microsoft Edge internet browser and the Microsoft Office suite of products, among other software.
This update also includes a critical advisory that covers updates to the Microsoft Office suite of products.
Please visit the SNORTⓇ blog here if you would like to know more about the coverage we have for these vulnerabilities.
Critical vulnerabilities
Microsoft has disclosed 12 critical vulnerabilities this mont
Talos
Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
blogs_talos·2018-10-09·CVSS 7.5
[HIGH] Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 49 vulnerabilities, 12 of which are rated "critical," 34 that are rated "important,” two that are considered to have “moderate” severity and one that’s rated as “low.”
The advisories cover bugs in the Chakra scripting engine, the Microsoft Edge internet browser and the Microsoft Office suite of products, among other software.
This update also includes a critical advisory that covers updates to the Microsoft Office suite of products .
Please visit the SNORTⓇ blog here if you would like to know more about the coverage we have for these vulnerabilities.
http://packetstormsecurity.com/files/156027/Microsoft-Windows-Theme-API-File-Parsing.htmlhttp://www.securityfocus.com/bid/105448http://www.securitytracker.com/id/1041824https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8413http://packetstormsecurity.com/files/156027/Microsoft-Windows-Theme-API-File-Parsing.htmlhttp://www.securityfocus.com/bid/105448http://www.securitytracker.com/id/1041824https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8413
2018-10-10
Published