Mozilla Firefox up to 39.0.2 PDF Reader information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 39.0.2. Affected by this vulnerability is an unknown functionality of the component PDF Reader. This manipulation causes information disclosure. This vulnerability is registered as CVE-2015-4495. Furthermore, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mozilla Firefox up to 39.0.2 (Web Browser) and classified as critical. Affected by this vulnerability is an unknown functionality of the component PDF Reader. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.

The weakness was published 08/08/2015 by Cody Crews (Website). The advisory is shared at bugzilla.mozilla.org. This vulnerability is known as CVE-2015-4495 since 06/10/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

A public exploit has been developed by Tantaryu MING and been published before and not just after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as attacked. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 85275 (Firefox < 39.0.3 PDF Reader Arbitrary File Access), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168026 (SUSE Enterprise Linux Security update for MozillaFirefox, mozilla-nss (SUSE-SU-2015:1476-1)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 05/25/2022 with a due date of 06/15/2022:

Apply updates per vendor instructions.

Upgrading to version 39.0.3 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20509.

The vulnerability is also documented in the databases at X-Force (105389), Exploit-DB (37772), Zero-Day.cz (269), Tenable (85275) and SecurityFocus (BID 76249†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Author: Tantaryu MING
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85275
Nessus Name: Firefox < 39.0.3 PDF Reader Arbitrary File Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803627
OpenVAS Name: Mozilla Firefox ESR Security Bypass Vulnerability - Aug15 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: firefox_pdfjs_file_theft.rb
MetaSploit Name: Firefox PDF.js Browser File Theft
MetaSploit File: 🔍

Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 39.0.3
Suricata ID: 2021601
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

06/10/2015 🔍
08/01/2015 +52 days 🔍
08/06/2015 +5 days 🔍
08/07/2015 +1 days 🔍
08/07/2015 +0 days 🔍
08/08/2015 +1 days 🔍
08/08/2015 +0 days 🔍
08/09/2015 +1 days 🔍
08/15/2015 +6 days 🔍
09/09/2024 +3313 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: USN-2707-1
Researcher: Cody Crews
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4495 (🔍)
GCVE (CVE): GCVE-0-2015-4495
GCVE (VulDB): GCVE-100-76945
X-Force: 105389 - Mozilla Firefox PDF Viewer security bypass
SecurityFocus: 76249 - Mozilla Firefox CVE-2015-4495 Same Origin Policy Security Bypass Vulnerability
SecurityTracker: 1033216
Vulnerability Center: 51790 - Mozilla Firefox, Firefox ESR and Firefox OS Remote Privileges Escalation via PDF Reader, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/08/2015 18:09
Updated: 09/09/2024 22:30
Changes: 08/08/2015 18:09 (73), 10/01/2017 20:18 (19), 06/07/2022 13:30 (4), 06/07/2022 13:35 (1), 06/07/2022 13:41 (1), 04/26/2024 17:06 (23), 06/28/2024 22:37 (12), 07/07/2024 14:59 (2), 09/09/2024 22:30 (1)
Complete: 🔍
Cache ID: 216:525:103

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