Microsoft Windows up to Server 1803 PDF memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$5k-$25k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows 10 1703/10 1709/10 1803/Server 1709/Server 1803 and classified as critical. Affected by this vulnerability is an unknown functionality of the component PDF. The manipulation results in memory corruption. This vulnerability is identified as CVE-2018-8350. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows 10 1703/10 1709/10 1803/Server 1709/Server 1803 (Operating System). Affected is an unknown code of the component PDF. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A remote code execution vulnerability exists when Microsoft Windows PDF Library improperly handles objects in memory, aka "Windows PDF Remote Code Execution Vulnerability." This affects Windows 10 Servers, Windows 10.

The bug was discovered 08/14/2018. The weakness was released 08/14/2018 with Microsoft as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The public release was coordinated with the vendor. This vulnerability is traded as CVE-2018-8350 since 03/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/15/2024). The advisory points out:

A remote code execution vulnerability exists when Microsoft Windows PDF Library improperly handles objects in memory. The vulnerability could corrupt memory in a way that enables an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

The vulnerability scanner Nessus provides a plugin with the ID 111684 (KB4343885: Windows 10 Version 1703 August 2018 Security Update (Foreshadow)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91465 (Microsoft Windows Security Update August 2018).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111684) and SecurityFocus (BID 104985†). Entries connected to this vulnerability are available at VDB-122844, VDB-122881 and VDB-122888. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.2
Vendor Vector (Microsoft): 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111684
Nessus Name: KB4343885: Windows 10 Version 1703 August 2018 Security Update (Foreshadow)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/14/2018 🔍
08/14/2018 +152 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/15/2018 +0 days 🔍
07/15/2024 +2161 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: portal.msrc.microsoft.com
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8350 (🔍)
GCVE (CVE): GCVE-0-2018-8350
GCVE (VulDB): GCVE-100-122826

OVAL: 🔍

SecurityFocus: 104985 - Microsoft Windows PDF CVE-2018-8350 Remote Code Execution Vulnerability
SecurityTracker: 1041465

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/14/2018 21:13
Updated: 07/15/2024 07:28
Changes: 08/14/2018 21:13 (84), 03/15/2020 13:09 (6), 05/01/2023 14:49 (4), 07/15/2024 07:28 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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