CVE-2021-42857 Directory Traversal Partial Write at AgentDaServlet
Attackers can exploit directory traversal in the AgentDaServlet API to write files to arbitrary locations on the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42857?
CVE-2021-42857 is a medium-severity path traversal vulnerability in Aternity SteelCentral AppInternals Dynamic Sampling Agent, published on 9 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) AgentDaServlet has directory traversal vulnerabilities at the "/api/appInternals/1.0/agent/da/pcf" API. The affected endpoint does not have any validation of the user's input that allows a malicious payload to be injected.
Which versions are affected by CVE-2021-42857?
It affects 1 product.
Products include Riverbed Steelcentral Appinternals Dynamic Sampling Agent.
How do I fix CVE-2021-42857?
No fix has been published for CVE-2021-42857 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-42857 being exploited?
There is no known exploitation of CVE-2021-42857 in the wild and no public exploit code.
Other vulnerabilities in Aternity SteelCentral AppInternals Dynamic Sampling Agent
- CVE-2021-42786 Remote Code Execution at AgentControllerServlet
- CVE-2021-42854 Directory Traversal Read/Write/Delete at PluginServlet
- CVE-2021-42787 Directory Traversal Write/Delete/Partial Read at AgentConfigurationServlet
- CVE-2021-42853 Directory Traversal Delete/Read at AgentDiagnosticServlet
- CVE-2021-42855 Local privilege escalation due to misconfigured write permission on .debug_command.config file
Sources
Also known as GHSA-wcq9-68x2-x82m.