CVE-2017-7546
postgresql: Empty password accepted in some authentication methods
Severity Score
9.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
PostgreSQL versions before 9.2.22, 9.3.18, 9.4.13, 9.5.8 and 9.6.4 are vulnerable to incorrect authentication flaw allowing remote attackers to gain access to database accounts with an empty password.
PostgreSQL en sus versiones anteriores a 9.2.22, 9.3.18, 9.4.13, 9.5.8 y 9.6.4 es vulnerable a un fallo de autenticación incorrecta que permite que atacantes remotos obtengan acceso a cuentas de la base de datos con una contraseña vacía.
It was found that authenticating to a PostgreSQL database account with an empty password was possible despite libpq's refusal to send an empty password. A remote attacker could potentially use this flaw to gain access to database accounts with empty passwords.
Ben de Graaff, Jelte Fennema, and Jeroen van der Ham discovered that PostgreSQL allowed the use of empty passwords in some authentication methods, contrary to expected behaviour. A remote attacker could use an empty password to authenticate to servers that were believed to have password login disabled. Jeff Janes discovered that PostgreSQL incorrectly handled the pg_user_mappings catalog view. A remote attacker without server privileges could possibly use this issue to obtain certain passwords. Various other issues were also addressed.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2017-04-05 CVE Reserved
- 2017-08-10 CVE Published
- 2024-09-16 CVE Updated
- 2025-04-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/100278 | Third Party Advisory | |
| http://www.securitytracker.com/id/1039142 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3935 | 2019-10-09 | |
| http://www.debian.org/security/2017/dsa-3936 | 2019-10-09 | |
| https://access.redhat.com/errata/RHSA-2017:2677 | 2019-10-09 | |
| https://access.redhat.com/errata/RHSA-2017:2678 | 2019-10-09 | |
| https://access.redhat.com/errata/RHSA-2017:2728 | 2019-10-09 | |
| https://access.redhat.com/errata/RHSA-2017:2860 | 2019-10-09 | |
| https://security.gentoo.org/glsa/201710-06 | 2019-10-09 | |
| https://www.postgresql.org/about/news/1772 | 2019-10-09 | |
| https://access.redhat.com/security/cve/CVE-2017-7546 | 2017-10-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1477184 | 2017-10-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2 Search vendor "Postgresql" for product "Postgresql" and version "9.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.1 Search vendor "Postgresql" for product "Postgresql" and version "9.2.1" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.2 Search vendor "Postgresql" for product "Postgresql" and version "9.2.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.3 Search vendor "Postgresql" for product "Postgresql" and version "9.2.3" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.4 Search vendor "Postgresql" for product "Postgresql" and version "9.2.4" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.5 Search vendor "Postgresql" for product "Postgresql" and version "9.2.5" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.6 Search vendor "Postgresql" for product "Postgresql" and version "9.2.6" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.7 Search vendor "Postgresql" for product "Postgresql" and version "9.2.7" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.8 Search vendor "Postgresql" for product "Postgresql" and version "9.2.8" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.9 Search vendor "Postgresql" for product "Postgresql" and version "9.2.9" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.10 Search vendor "Postgresql" for product "Postgresql" and version "9.2.10" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.11 Search vendor "Postgresql" for product "Postgresql" and version "9.2.11" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.12 Search vendor "Postgresql" for product "Postgresql" and version "9.2.12" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.13 Search vendor "Postgresql" for product "Postgresql" and version "9.2.13" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.14 Search vendor "Postgresql" for product "Postgresql" and version "9.2.14" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.15 Search vendor "Postgresql" for product "Postgresql" and version "9.2.15" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.16 Search vendor "Postgresql" for product "Postgresql" and version "9.2.16" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.17 Search vendor "Postgresql" for product "Postgresql" and version "9.2.17" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.18 Search vendor "Postgresql" for product "Postgresql" and version "9.2.18" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.19 Search vendor "Postgresql" for product "Postgresql" and version "9.2.19" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.20 Search vendor "Postgresql" for product "Postgresql" and version "9.2.20" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.2.21 Search vendor "Postgresql" for product "Postgresql" and version "9.2.21" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3 Search vendor "Postgresql" for product "Postgresql" and version "9.3" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.1 Search vendor "Postgresql" for product "Postgresql" and version "9.3.1" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.2 Search vendor "Postgresql" for product "Postgresql" and version "9.3.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.3 Search vendor "Postgresql" for product "Postgresql" and version "9.3.3" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.4 Search vendor "Postgresql" for product "Postgresql" and version "9.3.4" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.5 Search vendor "Postgresql" for product "Postgresql" and version "9.3.5" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.6 Search vendor "Postgresql" for product "Postgresql" and version "9.3.6" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.7 Search vendor "Postgresql" for product "Postgresql" and version "9.3.7" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.8 Search vendor "Postgresql" for product "Postgresql" and version "9.3.8" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.9 Search vendor "Postgresql" for product "Postgresql" and version "9.3.9" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.10 Search vendor "Postgresql" for product "Postgresql" and version "9.3.10" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.11 Search vendor "Postgresql" for product "Postgresql" and version "9.3.11" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.12 Search vendor "Postgresql" for product "Postgresql" and version "9.3.12" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.13 Search vendor "Postgresql" for product "Postgresql" and version "9.3.13" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.14 Search vendor "Postgresql" for product "Postgresql" and version "9.3.14" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.15 Search vendor "Postgresql" for product "Postgresql" and version "9.3.15" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.16 Search vendor "Postgresql" for product "Postgresql" and version "9.3.16" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.3.17 Search vendor "Postgresql" for product "Postgresql" and version "9.3.17" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4 Search vendor "Postgresql" for product "Postgresql" and version "9.4" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.1 Search vendor "Postgresql" for product "Postgresql" and version "9.4.1" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.2 Search vendor "Postgresql" for product "Postgresql" and version "9.4.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.3 Search vendor "Postgresql" for product "Postgresql" and version "9.4.3" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.4 Search vendor "Postgresql" for product "Postgresql" and version "9.4.4" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.5 Search vendor "Postgresql" for product "Postgresql" and version "9.4.5" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.6 Search vendor "Postgresql" for product "Postgresql" and version "9.4.6" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.7 Search vendor "Postgresql" for product "Postgresql" and version "9.4.7" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.8 Search vendor "Postgresql" for product "Postgresql" and version "9.4.8" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.9 Search vendor "Postgresql" for product "Postgresql" and version "9.4.9" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.10 Search vendor "Postgresql" for product "Postgresql" and version "9.4.10" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.11 Search vendor "Postgresql" for product "Postgresql" and version "9.4.11" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.4.12 Search vendor "Postgresql" for product "Postgresql" and version "9.4.12" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5 Search vendor "Postgresql" for product "Postgresql" and version "9.5" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.1 Search vendor "Postgresql" for product "Postgresql" and version "9.5.1" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.2 Search vendor "Postgresql" for product "Postgresql" and version "9.5.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.3 Search vendor "Postgresql" for product "Postgresql" and version "9.5.3" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.4 Search vendor "Postgresql" for product "Postgresql" and version "9.5.4" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.5 Search vendor "Postgresql" for product "Postgresql" and version "9.5.5" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.6 Search vendor "Postgresql" for product "Postgresql" and version "9.5.6" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.5.7 Search vendor "Postgresql" for product "Postgresql" and version "9.5.7" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.6 Search vendor "Postgresql" for product "Postgresql" and version "9.6" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.6.1 Search vendor "Postgresql" for product "Postgresql" and version "9.6.1" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.6.2 Search vendor "Postgresql" for product "Postgresql" and version "9.6.2" | - |
Affected
| ||||||
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | 9.6.3 Search vendor "Postgresql" for product "Postgresql" and version "9.6.3" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||