Current Description
A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
Source:
MITRE
Description Last Modified:
04/03/2018
View Analysis Description
Analysis Description
A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
Source:
MITRE
Description Last Modified:
04/03/2018
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
8.8 HIGH
Vector:
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
(V3 legend)
Impact Score:
5.9
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
6.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
(V2 legend)
Impact Subscore:
6.4
Exploitability Subscore:
8.6
Access Vector (AV):
Network
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
Partial
Availability (A):
Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
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Technical Details
Vulnerability Type
(View All)
- Cross-Site Request Forgery (CSRF) (CWE-352)
Change History
1 change record found
- show changes
Initial Analysis -
5/15/2018 2:08:55 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:* versions up to (including) 3.3.1 |
| Added |
CVSS V2 |
|
(AV:N/AC:M/Au:N/C:P/I:P/A:P) |
| Added |
CVSS V2 Metadata |
|
Victim must voluntarily interact with attack mechanism |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-352 |
| Changed |
Reference Type |
https://bugzilla.redhat.com/show_bug.cgi?id=1552714 No Types Assigned |
https://bugzilla.redhat.com/show_bug.cgi?id=1552714 Issue Tracking, Third Party Advisory |
| Changed |
Reference Type |
https://github.com/coreos/etcd/issues/9353 No Types Assigned |
https://github.com/coreos/etcd/issues/9353 Exploit, Third Party Advisory |