CVE-2020-4042
CVSS V2 Medium 4.3
CVSS V3 Medium 6.8
Description
Bareos before version 19.2.8 and earlier allows a malicious client to communicate with the director without knowledge of the shared secret if the director allows client initiated connection and connects to the client itself. The malicious client can replay the Bareos director's cram-md5 challenge to the director itself leading to the director responding to the replayed challenge. The response obtained is then a valid reply to the directors original challenge. This is fixed in version 19.2.8.
Overview
- CVE ID
- CVE-2020-4042
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-07-10T20:15:11
- Last Modified Date
- 2020-07-15T17:30:50
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:* | 1 | OR | 19.2.7 | |
| cpe:2.3:a:bareos:bareos:19.2.8:pre:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/bareos/bareos/security/advisories/GHSA-vqpj-2vhj-h752 | Mitigation Third Party Advisory |
| https://bugs.bareos.org/view.php?id=1250 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-4042 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4042 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:40:41 | Added to TrackCVE | |||
| 2022-12-04 19:22:29 | 2020-07-10T20:15Z | 2020-07-10T20:15:11 | CVE Published Date | updated |
| 2022-12-04 19:22:29 | 2020-07-15T17:30:50 | CVE Modified Date | updated | |
| 2022-12-04 19:22:29 | Analyzed | Vulnerability Status | updated |