Bugzilla – Bug 943558
VUL-0: CVE-2015-4498: MozillaFirefox: Add-on notification bypass through data URLs (MFSA 2015-95)
Last modified: 2015-11-23 21:11:03 UTC
Mozilla Foundation Security Advisory 2015-95 Add-on notification bypass through data URLs Announced August 27, 2015 Reporter Bas Venis Impact High Products Firefox Firefox ESR Fixed in Firefox 40.0.3 Firefox ESR 38.2.1 Description Security researcher Bas Venis reported a mechanism where add-ons could be installed from a different source than user expectations. Normally, when a user enters the URL to an add-on directly in the addressbar, warning prompts are bypassed because it is the result of direct user action. He discovered that a data: URL could be manipulated on a loaded page to simulate this direct user input of the add-on's URL, which would result in a bypassing of the install permission prompt. He also reported that in the absence of the permission prompt, it is possible to cause the actual installation prompt to appear above another site's location by causing a page navigation immediately after triggering add-on installation. This could manipulate a user into falsely believing a trusted site (such as addons.mozilla.org) has initiated the installation. This could lead to users installing an add-on from a malicious source. References * Firefox Addon bypass dialog and spoof vulnerability (CVE-2015-4498) References: https://www.mozilla.org/en-US/security/advisories/mfsa2015-95/ https://bugzilla.redhat.com/show_bug.cgi?id=1257278 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-4498 http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-4498.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4498
An update workflow for this issue was started. This issue was rated as critical. Please submit fixed packages until 2015-09-01. When done, reassign the bug to security-team@suse.de. https://swamp.suse.de/webswamp/wf/62284
bugbot adjusting priority
SUSE-SU-2015:1476-1: An update that fixes 16 vulnerabilities is now available. Category: security (important) Bug References: 940806,943557,943558,943608 CVE References: CVE-2015-4473,CVE-2015-4474,CVE-2015-4475,CVE-2015-4478,CVE-2015-4479,CVE-2015-4484,CVE-2015-4485,CVE-2015-4486,CVE-2015-4487,CVE-2015-4488,CVE-2015-4489,CVE-2015-4491,CVE-2015-4492,CVE-2015-4495,CVE-2015-4497,CVE-2015-4498 Sources used: SUSE Linux Enterprise Software Development Kit 12 (src): MozillaFirefox-38.2.1esr-45.1, mozilla-nss-3.19.2.0-26.2 SUSE Linux Enterprise Server 12 (src): MozillaFirefox-38.2.1esr-45.1, MozillaFirefox-branding-SLE-31.0-14.1, mozilla-nss-3.19.2.0-26.2 SUSE Linux Enterprise Desktop 12 (src): MozillaFirefox-38.2.1esr-45.1, MozillaFirefox-branding-SLE-31.0-14.1, mozilla-nss-3.19.2.0-26.2
no reproducer available
SUSE-SU-2015:1504-1: An update that solves two vulnerabilities and has one errata is now available. Category: security (important) Bug References: 943557,943558,943608 CVE References: CVE-2015-4497,CVE-2015-4498 Sources used: SUSE Linux Enterprise Server 11-SP2-LTSS (src): MozillaFirefox-38.2.1esr-17.1 SUSE Linux Enterprise Server 11-SP1-LTSS (src): MozillaFirefox-38.2.1esr-17.1 SUSE Linux Enterprise Debuginfo 11-SP2 (src): MozillaFirefox-38.2.1esr-17.1 SUSE Linux Enterprise Debuginfo 11-SP1 (src): MozillaFirefox-38.2.1esr-17.1
released
SUSE-SU-2015:2081-1: An update that fixes 43 vulnerabilities is now available. Category: security (important) Bug References: 908275,940806,943557,943558,943608,947003,952810 CVE References: CVE-2015-4473,CVE-2015-4474,CVE-2015-4475,CVE-2015-4478,CVE-2015-4479,CVE-2015-4484,CVE-2015-4485,CVE-2015-4486,CVE-2015-4487,CVE-2015-4488,CVE-2015-4489,CVE-2015-4491,CVE-2015-4492,CVE-2015-4497,CVE-2015-4498,CVE-2015-4500,CVE-2015-4501,CVE-2015-4506,CVE-2015-4509,CVE-2015-4511,CVE-2015-4513,CVE-2015-4517,CVE-2015-4519,CVE-2015-4520,CVE-2015-4521,CVE-2015-4522,CVE-2015-7174,CVE-2015-7175,CVE-2015-7176,CVE-2015-7177,CVE-2015-7180,CVE-2015-7181,CVE-2015-7182,CVE-2015-7183,CVE-2015-7188,CVE-2015-7189,CVE-2015-7193,CVE-2015-7194,CVE-2015-7196,CVE-2015-7197,CVE-2015-7198,CVE-2015-7199,CVE-2015-7200 Sources used: SUSE Linux Enterprise Server 10 SP4 LTSS (src): MozillaFirefox-38.4.0esr-0.7.1, MozillaFirefox-branding-SLED-38-0.5.3, mozilla-nspr-4.10.10-0.5.1, mozilla-nss-3.19.2.1-0.5.1