Vulnerabilities in pkg:maven/org.apache.skywalking/oap-server
PACKAGECVE-2020-13921 is a CRITICAL (CVSS 9.8) sql injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Oap server libraries in the Maven ecosystem. The issue involves sql injection in apache skywalking. Remediation is available by upgrading affected packages to version 8.1.0.
pkg:maven/org.apache.skywalking/oap-server
Vulnerability advisories affecting package pkg:maven/org.apache.skywalking/oap-server. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-grpf-gg7v-5g5h | CVE-2020-13921 | CRITICAL | SQL Injection in Apache SkyWalking |
CVE-2020-13921 at a Glance
Security Impact
CVSS: 9.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2020-13921
To remediate this vulnerability, upgrade all affected Oap server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.apache.skywalking</groupId>
<artifactId>oap-server</artifactId>
<version>8.1.0</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.apache.skywalkingHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2020-13921, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.apache.skywalkingAnalyze the terminal output to locate any version of Oap server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.1.0), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.apache.skywalking command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where 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. In Oap server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2020-13921 Affected Oap server Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.apache.skywalking:oap-server
|
Maven |
< 8.1.0
|
8.1.0
|
References
Frequently Asked Questions
What is CVE-2020-13921?
Which Oap server versions are affected?
What version fixes CVE-2020-13921?
Is oap-server affected?
What is the CVSS score of CVE-2020-13921?
What CWE is associated with CVE-2020-13921?
How can I check Maven dependencies for CVE-2020-13921?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-grpf-gg7v-5g5h",
"modified" : "2023-11-07T22:10:55Z",
"published" : "2021-05-07T15:53:31Z",
"aliases" : [ "CVE-2020-13921" ],
"summary" : "SQL Injection in Apache SkyWalking",
"details" : "Only when using H2/MySQL/TiDB as Apache SkyWalking storage, there is a SQL injection vulnerability in the wildcard query cases.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.skywalking:oap-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "8.1.0"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-13921"
}, {
"type" : "WEB",
"url" : "https://github.com/apache/skywalking/pull/4970"
}, {
"type" : "WEB",
"url" : "https://github.com/apache/skywalking/commit/fb7912c6bdda06a233f4b3e18e71a87d3e4a8951"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/apache/skywalking"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/apache-skywalking/PYSEC-2020-342.yaml"
}, {
"type" : "WEB",
"url" : "https://lists.apache.org/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6%40%3Cdev.skywalking.apache.org%3E"
}, {
"type" : "WEB",
"url" : "https://lists.apache.org/thread.html/r6f3a934ebc54585d8468151a494c1919dc1ee2cccaf237ec434dbbd6@%3Cdev.skywalking.apache.org%3E"
}, {
"type" : "WEB",
"url" : "http://www.openwall.com/lists/oss-security/2020/08/05/3"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-89" ],
"severity" : "CRITICAL",
"github_reviewed" : true,
"github_reviewed_at" : "2021-05-06T17:14:01Z",
"nvd_published_at" : "2020-08-05T14:15:00Z"
}
}