CVE-2015-4495
Mozilla Firefox: Security Feature Bypass
As of , CVE-2015-4495 in Mozilla Firefox is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 25 May 2022
- US federal deadline
- 15 June 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.69Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.92 on 25 May 2022EPSS on the day CISA listed it.
- Public exploit
- 1 Metasploit module and 1 Exploit-DB entry
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Moxilla Firefox allows remote attackers to bypass the Same Origin Policy to read arbitrary files or gain privileges.
CISA's description
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 CVE record's description, from mozilla
- CVE published
- 8 August 2015
- Assigned by
- mozilla
- CVSS
- 8.8 High (CVSS 3.1, from CISA-ADP)
- CWE-346
- Origin Validation Error
- CWE-200
- Exposure of Sensitive Information to an Unauthorized Actor
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 37772).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: Firefox PDF.js Browser File Theftauxiliary module, rank normal
- Exploit-DB: Mozilla Firefox < 39.03 - 'pdf.js' Same Origin PolicyEDB-ID 37772, 15 August 2015
Firefox: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2024-9680Use-After-Free | Mozilla Firefox | Patch this weekRansomware use | 0.23 | ||
| CVE-2022-26485Use-After-Free | Mozilla Firefox | Patch soon | 0.14 | ||
| CVE-2013-1675Information Disclosure | Mozilla Firefox | Patch soon | 0.07 | ||
| CVE-2022-26486Use-After-Free | Mozilla Firefox | Patch soon | 0.02 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org