CVE-2021-42857

Directory Traversal Partial Write at AgentDaServlet

MEDIUM

5.3

CVSS Score

Published: March 9, 2022 at 04:51 PM UTC

Updated: June 17, 2026 at 04:10 AM UTC

2 products affected across 2 vendorsSteelcentral Appinternals Dynamic Sampling AgentSteelCentral AppInternals Dynamic Sampling Agent

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Severity

MEDIUM5.3

Exploit prediction

EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Steelcentral Appinternals Dynamic Sampling Agent · Riverbed

95%

11.0.0 ≤ v < 11.8.812.0.0 ≤ v < 12.13.010.0.0

Affected range stops below 11.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.13.0, so it looks safe — our inference, not a vendor statement

SteelCentral AppInternals Dynamic Sampling Agent · Aternity

60%

v < 11.8.8v < 12.13.010.x

Affected range stops below 11.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.13.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://aternity.force.com/customersuccess/s/article/Directory-Traversal-Partial-Write-at-AgentDaServlet-CVE-2021-42857

CVSS

5.3MEDIUMGovTech CSG

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20CWE-22

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