CVE-2017-7562
CVSS V2 Medium 4
CVSS V3 Medium 6.5
Description
An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.
Overview
- CVE ID
- CVE-2017-7562
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-07-26T15:29:00
- Last Modified Date
- 2023-02-12T23:31:19
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* | 1 | OR | 1.0 | 1.16.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://www.securityfocus.com/bid/100511 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2018:0666 | Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2017-7562 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1485510 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7562 | Issue Tracking Patch Third Party Advisory |
| https://github.com/krb5/krb5/pull/694 | Patch Third Party Advisory |
| https://github.com/krb5/krb5/pull/694/commits/1de6ca2f2eb1fdbab51f1549a25a6903aefcc196 | Third Party Advisory |
| https://github.com/krb5/krb5/pull/694/commits/50fe4074f188c2d4da0c421e96553acea8378db2 | Third Party Advisory |
| https://github.com/krb5/krb5/pull/694/commits/b7af544e50a4d8291524f590e20dd44430bf627d | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-7562 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7562 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:52:55 | Added to TrackCVE | |||
| 2022-12-03 10:31:51 | 2018-07-26T15:29Z | 2018-07-26T15:29:00 | CVE Published Date | updated |
| 2022-12-03 10:31:51 | 2020-01-21T16:48:27 | CVE Modified Date | updated | |
| 2022-12-03 10:31:51 | Analyzed | Vulnerability Status | updated | |
| 2023-02-02 17:07:49 | 2023-02-02T15:17:26 | CVE Modified Date | updated | |
| 2023-02-02 17:07:49 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-02 17:07:51 | An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances. | An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances. | Description | updated |
| 2023-02-02 17:07:55 | References | updated | ||
| 2023-02-13 01:08:16 | 2023-02-12T23:31:19 | CVE Modified Date | updated | |
| 2023-02-13 01:08:17 | An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances. | An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances. | Description | updated |