VulnSocial

CVE-2020-1957Exploit(apache / debian_linux)

LOWCVSS 9.8 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Prioritize remediation for apache debian_linux systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

Apache Shiro before 1.5.2, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

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2.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • debian_linux
  • shiro

Threat summary

  • Exploit tooling references are present in monitored signal
  • 1 mentions across 1 observed day

What's happening

  • Exploit tool or code specified in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
apachedebian
Products
debian_linuxshiro

1 version affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-03-21: 1Exploit Tool / Code · 2026-03-21: 1Technical Details · 2026-03-21: 103-21
Signal classification1 categories
Exploit
1100.0%
Full discourse1 post
  • _understake@understake04
    Exploit

    1. Apache Shiro Auth Bypass (CVE-2020-1957) I By simply injecting a /..;/ payload into the URL (Path Traversal), the obsolete Shiro framework got confused, granting me unauthorized access to protected internal APIs without any admin credentials.

    Post summary

    The post illustrates that Apache Shiro’s authentication bypass can be triggered via a simple \/..;/ payload, granting unauthorized API access without credentials.

    0000067
    183 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appapacheshiro---
OSdebiandebian_linux8.0--

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