Vulnerability Details : CVE-2017-7836
The "pingsender" executable used by the Firefox Health Report dynamically loads a system copy of libcurl, which an attacker could replace. This allows for privilege escalation as the replaced libcurl code will run with Firefox's privileges. Note: This attack requires an attacker have local system access and only affects OS X and Linux. Windows systems are not affected. This vulnerability affects Firefox < 57.
Vulnerability category: Gain privilege
Products affected by CVE-2017-7836
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*When used together with: Linux » Linux Kernel
Exploit prediction scoring system (EPSS) score for CVE-2017-7836
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7836
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2017-7836
-
The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7836
-
http://www.securitytracker.com/id/1039803
Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Conduct Cross-Site Scripting Attacks, Bypass Security Controls, Obtain Potentially Sensitive Information, and Execute Arbitrary Code and LetThird Party Advisory;VDB Entry
-
http://www.securityfocus.com/bid/101832
Mozilla Firefox Prior to 57 Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://www.mozilla.org/security/advisories/mfsa2017-24/
Security vulnerabilities fixed in Firefox 57 — MozillaVendor Advisory
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https://bugzilla.mozilla.org/show_bug.cgi?id=1401339
1401339 - (CVE-2017-7836) The pingsender executable dynamically loads libcurl, using dlopen and hardcoded library list. [Mac/Linux]Issue Tracking;Permissions Required
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