Mozilla Firefox/Firefox ESR/Thunderbird Resource Timing API access control

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox, Firefox ESR and Thunderbird. This affects an unknown function in the library /usr/lib/browser-plugins/ of the component Resource Timing API. Such manipulation leads to access control. This vulnerability is documented as CVE-2017-7830. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird (Web Browser) (version unknown) and classified as critical. Affected by this issue is an unknown function in the library /usr/lib/browser-plugins/ of the component Resource Timing API. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

The bug was discovered 11/14/2017. The weakness was released 06/11/2018 with Mozilla as Bug 1408990 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2017-7830 since 04/12/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 104648 (openSUSE Security Update : MozillaFirefox (openSUSE-2017-1279)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370658 (Mozilla Firefox Multiple Vulnerabilities. (mfsa2017-24,mfsa2017-25)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104648) and SecurityFocus (BID 101832†). Entries connected to this vulnerability are available at VDB-119332, VDB-119333, VDB-119334 and VDB-119337. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 6.2

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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: 104648
Nessus Name: openSUSE Security Update : MozillaFirefox (openSUSE-2017-1279)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100689
OpenVAS Name: CentOS Update for firefox CESA-2017:3247 centos7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/12/2017 🔍
11/14/2017 +216 days 🔍
11/14/2017 +0 days 🔍
11/16/2017 +2 days 🔍
11/17/2017 +1 days 🔍
06/11/2018 +205 days 🔍
06/11/2018 +0 days 🔍
06/12/2018 +1 days 🔍
11/26/2025 +2724 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1408990
Organization: Mozilla
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7830 (🔍)
GCVE (CVE): GCVE-0-2017-7830
GCVE (VulDB): GCVE-100-119336

OVAL: 🔍

SecurityFocus: 101832 - Mozilla Firefox Prior to 57 Multiple Security Vulnerabilities
SecurityTracker: 1039803

See also: 🔍

Entryinfo

Created: 06/12/2018 08:51
Updated: 11/26/2025 06:37
Changes: 06/12/2018 08:51 (79), 02/18/2020 07:54 (5), 03/22/2023 12:39 (4), 11/26/2025 06:37 (17)
Complete: 🔍
Cache ID: 216::103

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