CVE-2020-35517
Qemu Privilege Escalation Vulnerability
Description
A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
INFO
Published Date :
Jan. 28, 2021, 8:15 p.m.
Last Modified :
Feb. 12, 2023, 11:41 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-35517.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1915823 | Issue Tracking Patch Third Party Advisory |
| https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c | Patch Third Party Advisory |
| https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html | Exploit Mailing List Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210312-0002/ | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/01/22/1 | Exploit Mailing List Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-35517 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-35517 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Changed Description A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices. Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H Removed Reference https://access.redhat.com/errata/RHBA-2021:0639 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2021:0711 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2021:0743 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2020-35517 [No Types Assigned] Removed Reference https://virtio-fs.gitlab.io/ [No Types Assigned] Added CWE Red Hat, Inc. CWE-269 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Description A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices. A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H Added Reference https://access.redhat.com/errata/RHSA-2021:0743 [No Types Assigned] Added Reference https://virtio-fs.gitlab.io/ [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2021:0711 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2020-35517 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHBA-2021:0639 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-269 -
Modified Analysis by [email protected]
Sep. 30, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-27 No Types Assigned https://security.gentoo.org/glsa/202208-27 Third Party Advisory -
CVE Modified by [email protected]
Aug. 15, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-27 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 08, 2021
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-284 Added CWE Red Hat, Inc. CWE-269 Removed CWE Reason CWE-284 / CWE from CNA not within 1003 View -
Reanalysis by [email protected]
Jun. 01, 2021
Action Type Old Value New Value Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1915823 Issue Tracking, Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=1915823 Issue Tracking, Patch, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 5.2.50 OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 5.2.50 -
Reanalysis by [email protected]
May. 21, 2021
Action Type Old Value New Value Changed Reference Type https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c Release Notes https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c Patch, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 5.2.50 -
Modified Analysis by [email protected]
Mar. 31, 2021
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20210312-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20210312-0002/ Third Party Advisory Added CWE NIST CWE-269 -
CVE Modified by [email protected]
Mar. 12, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210312-0002/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1915823 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1915823 Issue Tracking, Vendor Advisory Changed Reference Type https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c No Types Assigned https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c Release Notes Changed Reference Type https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html No Types Assigned https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html Exploit, Mailing List, Patch, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/01/22/1 No Types Assigned https://www.openwall.com/lists/oss-security/2021/01/22/1 Exploit, Mailing List, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-35517 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-35517
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.19514
percentile