CVE-2016-2845
What it is
The Content Security Policy (CSP) implementation in Blink, as used in Google Chrome before 49.0.2623.75, does not ignore a URL's path component in the case of a ServiceWorker fetch, which allows remote attackers to obtain sensitive information about visited web pages by reading CSP violation reports, related to FrameFetchContext.cpp and ResourceFetcher.cpp.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 2.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.1% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 2.1% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Google Chrome ≤ 48.0.2564.116
Attack profile CVSS 3.0 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2016-2845.md and follow it. Check whether this project is affected by CVE-2016-2845. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html
- http://homakov.blogspot.com/2014/01/using-content-security-policy-for-evil.html
- http://www.securityfocus.com/bid/84168
- http://www.securitytracker.com/id/1035185
- http://www.ubuntu.com/usn/USN-2920-1
- https://bugs.chromium.org/p/chromium/issues/detail?id=542060
- https://code.google.com/p/chromium/issues/detail?id=591402
- https://codereview.chromium.org/1454003003/
- http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html
- http://homakov.blogspot.com/2014/01/using-content-security-policy-for-evil.html
- http://www.securityfocus.com/bid/84168
- http://www.securitytracker.com/id/1035185
- http://www.ubuntu.com/usn/USN-2920-1
- https://bugs.chromium.org/p/chromium/issues/detail?id=542060
- https://code.google.com/p/chromium/issues/detail?id=591402
- https://codereview.chromium.org/1454003003/