Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-10925

Incorrect Authorization

Published: Aug 09, 2018 | Modified: Nov 21, 2024
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
5.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
7.1 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-10925
CWEhttps://cwe.mitre.org/data/definitions/863.html

It was discovered that PostgreSQL versions before 10.5, 9.6.10, 9.5.14, 9.4.19, and 9.3.24 failed to properly check authorization on certain statements involved with INSERT … ON CONFLICT DO UPDATE. An attacker with CREATE TABLE privileges could exploit this to read arbitrary bytes server memory. If the attacker also had certain INSERT and limited UPDATE privileges to a particular table, they could exploit this to update other columns in the same table.

Weakness

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Affected Software

Name Vendor Start Version End Version
Ubuntu_linux Canonical 14.04 (including) 14.04 (including)
Ubuntu_linux Canonical 16.04 (including) 16.04 (including)
Ubuntu_linux Canonical 18.04 (including) 18.04 (including)
CloudForms Management Engine 5.9 RedHat cfme-0:5.9.6.5-3.el7cf *
CloudForms Management Engine 5.9 RedHat cfme-amazon-smartstate-0:5.9.6.5-2.el7cf *
CloudForms Management Engine 5.9 RedHat cfme-appliance-0:5.9.6.5-1.el7cf *
CloudForms Management Engine 5.9 RedHat cfme-gemset-0:5.9.6.5-2.el7cf *
CloudForms Management Engine 5.9 RedHat dbus-api-service-0:1.0.1-3.1.el7cf *
CloudForms Management Engine 5.9 RedHat httpd-configmap-generator-0:0.2.2-1.2.el7cf *
CloudForms Management Engine 5.9 RedHat postgresql96-0:9.6.10-1PGDG.el7at *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-postgresql95-postgresql-0:9.5.14-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-postgresql96-postgresql-0:9.6.10-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-postgresql95-postgresql-0:9.5.14-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-postgresql96-postgresql-0:9.6.10-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-postgresql95-postgresql-0:9.5.14-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-postgresql10-postgresql-0:10.5-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-postgresql96-postgresql-0:9.6.10-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-postgresql95-postgresql-0:9.5.14-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-postgresql10-postgresql-0:10.5-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-postgresql96-postgresql-0:9.6.10-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-postgresql95-postgresql-0:9.5.14-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-postgresql10-postgresql-0:10.5-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS RedHat rh-postgresql96-postgresql-0:9.6.10-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS RedHat rh-postgresql95-postgresql-0:9.5.14-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS RedHat rh-postgresql10-postgresql-0:10.5-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS RedHat rh-postgresql96-postgresql-0:9.6.10-1.el7 *
Postgresql-10 Ubuntu bionic *
Postgresql-10 Ubuntu esm-infra/bionic *
Postgresql-10 Ubuntu upstream *
Postgresql-9.5 Ubuntu esm-infra/xenial *
Postgresql-9.5 Ubuntu upstream *
Postgresql-9.5 Ubuntu xenial *

Potential Mitigations

  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.

References

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