CVE-2021-42550

moderate-risk

Published 2021-12-16

In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.

Do I need to act?

2.7% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.6/10 Medium

NETWORK / HIGH complexity

Affected Products (17)

Logback

Satellite

Cloud Manager

Service Level Manager

Snap Creator Framework

Sinec Nms

Affected Vendors

Redhat Siemens Netapp Qos

References (14)

Vendor Advisory http://logback.qos.ch/news.html

Exploit http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-...

Mailing List http://seclists.org/fulldisclosure/2022/Jul/11

Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf

Exploit https://github.com/cn-panda/logbackRceDemo

Exploit https://jira.qos.ch/browse/LOGBACK-1591

Third Party Advisory https://security.netapp.com/advisory/ntap-20211229-0001/

Vendor Advisory http://logback.qos.ch/news.html

Exploit http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-...

Mailing List http://seclists.org/fulldisclosure/2022/Jul/11

Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdf

Exploit https://github.com/cn-panda/logbackRceDemo

Exploit https://jira.qos.ch/browse/LOGBACK-1591

Third Party Advisory https://security.netapp.com/advisory/ntap-20211229-0001/

/ 100

moderate-risk

Severity 20/34 · Moderate

Exploitability 6/34 · Minimal

Exposure 19/34 · Moderate