CVE-2021-32704 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in dhis2-core
Authenticated users can exploit SQL injection in the trackedEntityInstances API to read, edit, and delete data in DHIS2 instances.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-32704?
CVE-2021-32704 is a high-severity SQL injection vulnerability in dhis2-core, published on 24 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
DHIS 2 is an information system for data capture, management, validation, analytics and visualization. A SQL injection security vulnerability has been found in specific versions of DHIS2. This vulnerability affects the /api/trackedEntityInstances API endpoint in DHIS2 versions 2.34.4, 2.35.2, 2.35.3, 2.35.4, and 2.36.0. Earlier versions, such as 2.34.3 and 2.35.1 and all versions 2.33 and older are unaffected. The system is vulnerable to attack only from users that are logged in to DHIS2, and there is no known way of exploiting the vulnerability without first being logged in as a DHIS2 user. A successful exploit of this vulnerability could allow the malicious user to read, edit and delete data in the DHIS2 instance. There are no known exploits of the security vulnerabilities addressed by these patch releases. However, we strongly recommend that all DHIS2 implementations using versions 2.34, 2.35 and 2.36 install these patches as soon as possible. There is no straightforward known workaround for DHIS2 instances using the Tracker functionality other than upgrading the affected DHIS2 server to one of the patches in which this vulnerability has been fixed. For implementations which do NOT use Tracker functionality, it may be possible to block all network access to POST to the /api/trackedEntityInstance endpoint as a temporary workaround while waiting to upgrade.
Weakness: CWE-89
Which versions are affected by CVE-2021-32704?
It affects 1 product.
Products include Dhis2 Dhis 2.
How do I fix CVE-2021-32704?
No fix has been published for CVE-2021-32704 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2021-32704 being exploited?
There is no known exploitation of CVE-2021-32704 in the wild and no public exploit code.
Other vulnerabilities in dhis2-core
- CVE-2022-24848 SQL Injection in DHIS2's in OrgUnit program association
- CVE-2021-39179 SQL Injection in DHIS2 Tracker API
- CVE-2021-41187 SQL Injection in DHIS2 Tracker API
- CVE-2023-31138 DHIS2 Core vulnerable to Improper Access Control with PATCH requests
- CVE-2022-41948 Privilege Chaining with the user admin role in dhis2-core
Sources
Also known as GHSA-fj38-585h-hxgj.