CVE-2017-5618
What it is
GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
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: 1.1% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.1% · EPSS, next 30 days
- Weakness
- CWE-863 · Incorrect authorization
- Record status
- Modified
Affected
- Gnu Screen ≤ 4.5.0
Attack profile CVSS 3.0 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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-2017-5618.md and follow it. Check whether this project is affected by CVE-2017-5618. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8
- http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8
References
- http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8
- http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1
- http://savannah.gnu.org/bugs/?50142
- http://www.openwall.com/lists/oss-security/2017/01/29/3
- http://www.securityfocus.com/bid/95873
- https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html
- http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8
- http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1
- http://savannah.gnu.org/bugs/?50142
- http://www.openwall.com/lists/oss-security/2017/01/29/3
- http://www.securityfocus.com/bid/95873
- https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html