CVE-2019-10149

9CRITICAL

Key Information

Vendor
Exim
Status
Exim
Vendor
CVE Published:
5 June 2019

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 97%🦅 CISA Reported

Summary

A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2019-10149 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

exim = 4.92

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

exim-rce-quickfix
Created by bananaphones

CVE-2019-10149
Created by Diefunction

PoC--CVE-2019-10149_Exim
Created by MNEMO-CERT

References

http://www.openwall.com/lists/oss-security/2019/06/05/2
mailing-list
https://usn.ubuntu.com/4010-1/
vendor-advisory
http://www.openwall.com/lists/oss-security/2019/06/05/3
mailing-list

EPSS Score

97% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre DatabaseCISA Database14 Proof of Concept(s)
.