Vulnerability in Xerox Versalink B400
CVE-2022-23968
Xerox VersaLink devices on specific versions of firmware before 2022-01-26 allow remote attackers to brick the device via a crafted TIFF file in an unauthenticated HTTP POST request. There is a permanent denial of service because image parsing causes a reboot, but image parsing is restarted as soon as the boot process finishes. However, this boot loop can be resolved by a field technician. The TIFF file must have an incomplete Image Directory. Affected firmware versions include xx.42.01 and xx.50.61. NOTE: the 2022-01-24 NeoSmart article included "believed to affect all previous and later versions as of the date of this posting" but a 2022-01-26 vendor statement reports "the latest versions of firmware are not vulnerable to this issue."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: +0.000
Affected products
Weakness classification (CWE)
References
- neosmart.net/blog/2022/xerox-vulnerability-allows-unauthenticated-network-users… (Exploit, Third Party Advisory)
- twitter.com/mqudsi/status/1485756915187695618 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23968?
- CVE-2022-23968 is a high-severity vulnerability in Xerox Versalink B400, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2022-01-26.
- How severe is CVE-2022-23968?
- High severity. CVSS v3 base score is 7.5 out of 10.