vulnerability / NVI-00013804 / Revision 1
Yamcs: Insecure Direct Object Reference (IDOR) in PacketsApi allows unprivileged users to dump all telemetry packets
GitHub lists this reviewed advisory for org.yamcs:yamcs-core, org.yamcs:yamcs-core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
4.3 medium
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
org.yamcs:yamcs-core
source listed>= 5.13.0, <= 5.13.1
## Summary The `PacketsApi.exportPackets` endpoint in Yamcs fails to properly enforce object-level privileges (`ReadPacket`) when an API request omits specific packet names. As a result, an attacker with a low-privileged account (or any authenticated user with zero privileges) can dump the entire archive of raw telemetry packets for a Yamcs instance. This leads to a massive Information Disclosure of sensitive mission telemetry, completely bypassing the intended Role-Based Access Control (RBAC) model. ## Vulnerability Details In `yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java`, the `exportPackets` method processes requests to export raw packets from the `tm` (telemetry archive) table. ```java @Override public void exportPackets(Context ctx, ExportPacketsRequest request, Observer observer) { String instance = InstancesApi.verifyInstance(request.getInstance()); Set nameSet = new HashSet(request.getNameList()); ctx.checkObjectPrivileges(ObjectPrivilegeType.ReadPacket, nameSet); SqlBuilder sqlb = new SqlBuilder(XtceTmRecorder.TABLE_NAME); // ... time filters ... if (request.getNameCoun
org.yamcs:yamcs-core
source listed<= 5.12.7
## Summary The `PacketsApi.exportPackets` endpoint in Yamcs fails to properly enforce object-level privileges (`ReadPacket`) when an API request omits specific packet names. As a result, an attacker with a low-privileged account (or any authenticated user with zero privileges) can dump the entire archive of raw telemetry packets for a Yamcs instance. This leads to a massive Information Disclosure of sensitive mission telemetry, completely bypassing the intended Role-Based Access Control (RBAC) model. ## Vulnerability Details In `yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java`, the `exportPackets` method processes requests to export raw packets from the `tm` (telemetry archive) table. ```java @Override public void exportPackets(Context ctx, ExportPacketsRequest request, Observer observer) { String instance = InstancesApi.verifyInstance(request.getInstance()); Set nameSet = new HashSet(request.getNameList()); ctx.checkObjectPrivileges(ObjectPrivilegeType.ReadPacket, nameSet); SqlBuilder sqlb = new SqlBuilder(XtceTmRecorder.TABLE_NAME); // ... time filters ... if (request.getNameCoun
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-8xjq-pr36-ccgf ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.