CVE-2019-11708
Mozilla Firefox and Thunderbird: Sandbox Escape
As of , CVE-2019-11708 in Mozilla Firefox and Thunderbird 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 23 May 2022
- US federal deadline
- 13 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
- 0.56Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.18 on 23 May 2022EPSS on the day CISA listed it.
- Public exploit
- 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
Mozilla Firefox and Thunderbird contain a sandbox escape vulnerability that could result in remote code execution.
CISA's description
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.
The CVE record's description, from mozilla
- CVE published
- 23 July 2019
- Assigned by
- mozilla
- CVSS
- 10.0 Critical (CVSS 3.1, from CISA-ADP)
- CWE-20
- Improper Input Validation
- 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 47752).
- 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.
- Exploit-DB: Mozilla FireFox (Windows 10 x64) - Full Chain Client Side AttackEDB-ID 47752, 7 December 2019
Firefox and Thunderbird: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2013-1690Denial-of-Service | Mozilla Firefox and Thunderbird | Patch this weekMetasploit module; EPSS 0.69; verified Exploit-DB entry | 0.69 | ||
| CVE-2019-11707Type Confusion | Mozilla Firefox and Thunderbird | Patch soonVerified Exploit-DB entry | 0.38 | ||
| CVE-2019-17026Type Confusion | Mozilla Firefox and Thunderbird | Patch soon | 0.46 | ||
| CVE-2020-6820Use-After-Free | Mozilla Firefox and Thunderbird | Patch soon | 0.07 | ||
| CVE-2020-6819Use-After-Free | Mozilla Firefox and Thunderbird | Patch soon | 0.03 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org