Vulnerability Details : CVE-2017-0910
In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the server create a user account on any other realm.
Vulnerability category: BypassGain privilege
Products affected by CVE-2017-0910
- cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-0910
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-0910
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2017-0910
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: support@hackerone.com (Secondary)
References for CVE-2017-0910
-
http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/
Zulip 1.7.1 security (+ Korean!) releaseVendor Advisory
-
https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32
registration: Require an explicit realm on PreregistrationUser. · zulip/zulip@960d736 · GitHubPatch;Third Party Advisory
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