An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka "Microsoft SharePoint Elevation of Privilege Vulnerability." This affects Microsoft SharePoint. This CVE ID is unique from CVE-2018-8480, CVE-2018-8488, CVE-2018-8498.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0183-1 advisory.

    - Update to version 2.34.3 (bsc#1194019).
    - CVE-2021-30887: Fixed logic issue allowing unexpectedly unenforced Content Security Policy when     processing maliciously crafted web content.
    - CVE-2021-30890: Fixed logic issue allowing universal cross site scripting when processing maliciously     crafted web content.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0142-1 advisory.

    - Update to version 2.34.3 (bsc#1194019).
    - CVE-2021-30887: Fixed logic issue allowing unexpectedly unenforced Content Security Policy when     processing maliciously crafted web content.
    - CVE-2021-30890: Fixed logic issue allowing universal cross site scripting when processing maliciously     crafted web content.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Microsoft SharePoint Server installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - A remote code execution vulnerability exists in     Microsoft Word software when the software fails to     properly handle objects in Protected View. 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.  (CVE-2018-8504)

  - An elevation of privilege vulnerability exists when     Microsoft SharePoint Server does not properly sanitize a     specially crafted web request to an affected SharePoint     server. An authenticated attacker could exploit the     vulnerability by sending a specially crafted request to     an affected SharePoint server. The attacker who     successfully exploited the vulnerability could then     perform cross-site scripting attacks on affected systems     and run script in the security context of the current     user. These attacks could allow the attacker to read     content that the attacker is not authorized to read, use     the victim's identity to take actions on the SharePoint     site on behalf of the user, such as change permissions     and delete content, and inject malicious content in the     browser of the user. The security update addresses the     vulnerability by helping to ensure that SharePoint     Server properly sanitizes web requests. (CVE-2018-8480,     CVE-2018-8488, CVE-2018-8498, CVE-2018-8518)

ID	Name	Product	Family	Severity
157109	SUSE SLES15: libjavascriptcoregtk-4_0-18 / libwebkit2gtk-4_0-37 / etc (SUSE-SU-2022:0183-1)	Nessus	SuSE Local Security Checks	critical
156925	SUSE SLES12: libjavascriptcoregtk-4_0-18 / libwebkit2gtk-4_0-37 / etc (SUSE-SU-2022:0142-1)	Nessus	SuSE Local Security Checks	critical
118011	Security Updates for Microsoft SharePoint Server (October 2018)	Nessus	Windows : Microsoft Bulletins	high

Detections

Analytics

CVE-2018-8518

medium

Tenable Plugins

critical

critical

high