CVE-2017-18909
published 2020-06-19CVE-2017-18909: An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
PriorityP335high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.66%
47.7th percentile
An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | mattermost_mattermost-server | >= 0 < 3.8.1-0.20170504181128-4f074fed0d65 | 3.8.1-0.20170504181128-4f074fed0d65 |
| mattermost | mattermost_server | < 3.9.0 | 3.9.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
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OSV
Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server
osv·2026-02-17
CVE-2017-18909 Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server
Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server
Mattermost Server SAML implementation does not require encryption or signature verification as default in github.com/mattermost/mattermost-server.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.8.1-0.20170504181128-4f074fed0d65.
GHSA
Mattermost Server SAML implementation does not require encryption or signature verification as default
ghsa·2022-05-24
CVE-2017-18909 [HIGH] CWE-311 Mattermost Server SAML implementation does not require encryption or signature verification as default
Mattermost Server SAML implementation does not require encryption or signature verification as default
An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
OSV
Mattermost Server SAML implementation does not require encryption or signature verification as default
osv·2022-05-24
CVE-2017-18909 [HIGH] Mattermost Server SAML implementation does not require encryption or signature verification as default
Mattermost Server SAML implementation does not require encryption or signature verification as default
An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-06-19
Published