CVE-2021-36767

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-916

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txtThird Party Advisory
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txtThird Party Advisory

Timeline

Published: Oct 8, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-367695.3A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacke CVE-2021-36776.5A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authent CVE-2021-367707.8Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in t CVE-2021-367716.1Zoho ManageEngine ADManager Plus before 7110 allows reflected XSS.CVE-2021-367726.1Zoho ManageEngine ADManager Plus before 7110 allows stored XSS.CVE-2021-367737.5uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows craft CVE-2021-367746.5Apache Kylin allows users to read data from other database systems using JDBC. The MySQL JDBC driver supports certain properties, which, if CVE-2021-367758.8a Improper Access Control vulnerability in SUSE Rancher allows users to keep privileges that should have been revoked. This issue affects: S CVE-2021-367768.8A Improper Access Control vulnerability in SUSE Rancher allows remote attackers impersonate arbitrary users. This issue affects: SUSE Ranche CVE-2021-367778.8A Reliance on Untrusted Inputs in a Security Decision vulnerability in the login proxy of the openSUSE Build service allowed attackers to pr CVE-2021-367787.5A Incorrect Authorization vulnerability in SUSE Rancher allows administrators of third-party repositories to gather credentials that are sen CVE-2021-367799.6A Missing Authentication for Critical Function vulnerability in SUSE Longhorn allows any workload in the cluster to execute any binary prese