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Medium

Internet Explorer Elevation of Privilege Vulnerability

IdentifiersCVE-2015-0054CWE-269

CVE-2015-0054 is an elevation-of-privilege vulnerability in Microsoft Internet Explorer 7 through 11, addressed by Microsoft Security Update 3034682. The provided content identifies it as one of two IE elevation-of-privilege issues fixed in that bulletin and states that the update adds additional permission validations in Internet Explorer to remediate such flaws. Based on the available information, the vulnerability allows a remote attacker to gain elevated privileges by luring a user to a crafted web site. Microsoft also states that this issue does not by itself allow arbitrary code execution and would need to be chained with another vulnerability for full compromise.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an attacker to elevate privileges within the context of the affected system or browser process. Per the provided content, the issue does not itself provide arbitrary code execution, but it can be used as part of a multi-stage exploit chain to bypass intended privilege boundaries and increase the impact of another vulnerability, such as a separate remote code execution flaw.

Mitigation

If you can’t patch tonight, do this now.

No vulnerability-specific workaround or mitigating factor for CVE-2015-0054 is provided in the supplied content. General exposure reduction includes limiting use of Internet Explorer on untrusted sites and, on Windows Server platforms, relying on Internet Explorer Enhanced Security Configuration, which Microsoft notes reduces exposure to specially crafted web content. Because the issue requires chaining, reducing exposure to companion browser vulnerabilities also lowers practical exploitability.

Remediation

Patch, then assume compromise.

Apply Microsoft Security Update 3034682. For Internet Explorer 9, 10, and 11, Microsoft stated that both update 3021952 and update 3034196 are required for full protection. Where updates are installed manually, 3021952 should be installed before 3034196 to avoid degraded page rendering. Additional updates 3023607 and, on some platforms, 3036197 may be installed automatically as part of the update process.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationInternet Explorerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.