Vulnerability Details : CVE-2021-39179
Potential exploit
DHIS 2 is an information system for data capture, management, validation, analytics and visualization. A SQL Injection vulnerability in the Tracker component in DHIS2 Server allows authenticated remote attackers to execute arbitrary SQL commands via unspecified vectors. This vulnerability affects the `/api/trackedEntityInstances` and `/api/trackedEntityInstances/query` API endpoints in all DHIS2 versions 2.34, 2.35, and 2.36. It also affects versions 2.32 and 2.33 which have reached _end of support_ - exceptional security updates have been added to the latest *end of support* builds for these versions. Versions 2.31 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. The vulnerability is not exposed to a non-malicious user - the vulnerability requires a conscious attack to be exploited. 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. Security patches are available in DHIS2 versions 2.32-EOS, 2.33-EOS, 2.34.7, 2.35.7, and 2.36.4. 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/trackedEntityInstances`, and `/api/trackedEntityInstances/query` endpoints as a temporary workaround while waiting to upgrade.
Vulnerability category: Sql Injection
Products affected by CVE-2021-39179
- cpe:2.3:a:dhis2:dhis_2:*:*:*:*:*:*:*:*
- cpe:2.3:a:dhis2:dhis_2:*:*:*:*:*:*:*:*
- cpe:2.3:a:dhis2:dhis_2:*:*:*:*:*:*:*:*
- cpe:2.3:a:dhis2:dhis_2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39179
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39179
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2021-39179
-
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-39179
-
https://github.com/dhis2/dhis2-core/pull/8771
build: correct patch PRs by Philip-Larsen-Donnelly · Pull Request #8771 · dhis2/dhis2-core · GitHubPatch;Third Party Advisory
-
https://github.com/dhis2/dhis2-core/security/advisories/GHSA-cmpc-frjv-rrmw
SQL Injection in DHIS2 Tracker API (assignedUsers and escapeSql) · Advisory · dhis2/dhis2-core · GitHubExploit;Third Party Advisory
-
https://github.com/dhis2/dhis2-core/commit/16674ac75127b0e83691c6b1c9ce745e67ab58b6
build: correct patch PRs (#8771) · dhis2/dhis2-core@16674ac · GitHubPatch;Third Party Advisory
Jump to