CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
100.0%
Today we are releasing Grafana 8.3.2
and 7.5.12
. This patch release includes a moderate severity security fix for directory traversal for arbitrary .csv
files. It only affects instances that have the developer testing tool called TestData DB data source enabled and configured.
The vulnerability is limited in scope, and only allows access to files with the extension .csv
to authenticated users only.
This is a follow-up patch release to our recent CVE-2021-43798 release. If you havenβt read about that high severity security fix, we recommend that you review the initial blog post, along with our update on the 0day.
Given the attention CVE-2021-43798 has brought, thereβs a risk that additional researchers will find CVE-2021-43813. Out of an abundance of caution and given that both CVE-2021-43813 and CVE-2021-pending are only CVSS Score 4.3 Moderate CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N through their limited scope we are immediately releasing to the public, and on a Friday.
We identified several vulnerability issues in the last few weeks, and at a higher rate than in the years before. The infosec industry usually comes together after a few CVEs and we benefit from that extra scrutiny. Although it can be difficult, ultimately itβs for the overall benefit of Grafana and the community. Please know that this is a top priority for us. We are spending significant resources on this in the remainder of 2021 already, including full outside assessment. We will continue and increase this investment in 2022 and beyond.
Release 8.3.2, only containing security fixes:
Release 7.5.12, only containing security fixes:
CVSS Score: 4.3 Moderate CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
On 2021-12-09, GitHub Security Labs notified us of a vulnerability through which authenticated users could read out fully lowercase or fully uppercase .md
files through directory traversal. Doing our own follow-up investigation we found a related vulnerability through which authenticated users could read out arbitrary .csv
files through directory traversal. Thanks to our defense-in-depth approach, at no time has Grafana Cloud been vulnerable.
The vulnerable URL path is: /api/ds/query
CVE-2021-43815: Grafana 8.0.0-beta3 - 8.3.1
All installations between 5.0.0 and 8.3.1 should be upgraded as soon as possible.
If you can not upgrade, running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths.
Thanks to our defense-in-depth approach, Grafana Cloud instances have not been affected by the vulnerability.
Here is a detailed timeline starting from when we originally learned of the issue. All times in UTC.
.csv
vulnerability into its own CVEWe would like to thank the GitHub Security Lab team for responsibly disclosing CVE-2021-43813 to us.
If you think you have found a security vulnerability, please send a report to [email protected]. This address can be used for all of
Grafana Labsβ open source and commercial products (including but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is
F988 7BEA 027A 049F AE8E 5CAA D125 8932 BE24 C5CA
The key is available from keyserver.ubuntu.com.
We maintain a security category on our blog, where we will always post a summary, remediation, and mitigation details for any patch containing security fixes.
You can also subscribe to our RSS feed.
www.openwall.com/lists/oss-security/2021/12/10/4
github.com/grafana/grafana
github.com/grafana/grafana/commit/d6ec6f8ad28f0212e584406730f939105ff6c6d3
github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d
github.com/grafana/grafana/releases/tag/v8.3.2
github.com/grafana/grafana/security/advisories/GHSA-7533-c8qv-jm9m
grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix
nvd.nist.gov/vuln/detail/CVE-2021-43815
security.netapp.com/advisory/ntap-20220107-0006
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
100.0%