CVE-2022-3980

published 2022-11-16

CVE-2022-3980: An XML External Entity (XEE) vulnerability allows server-side request forgery (SSRF) and potential code execution in Sophos Mobile managed on-premises between…

Priority P1 83 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

ITW EXPLOIT VulnCheck KEV

An XML External Entity (XEE) vulnerability allows server-side request forgery (SSRF) and potential code execution in Sophos Mobile managed on-premises between versions 5.0.0 and 9.7.4.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
sophos	mobile	>= 5.0.0 < 9.7.5	9.7.5
sophos	sophos_mobile_managed_on-premises	>= 5.0.0 < unspecified	unspecified
sophos	sophos_mobile_managed_on-premises	unspecified – 9.7.4	—

Detection & IOCs extracted from sources · hover to see the quote

url /servlets/OmaDsServlet↗

other http.favicon.hash:-1274798165↗

other icon_hash=-1274798165↗

• → Exploit targets the OMA-DS servlet endpoint via HTTP POST with XML payload containing an XXE declaration. Monitor for POST requests to /servlets/OmaDsServlet with Content-Type application/xml containing DOCTYPE or ENTITY declarations. ↗
• → Successful XXE exploitation may result in an HTTP 400 response with an empty body (len(body) == 0). Correlate 400 responses with zero-length bodies on this endpoint as a post-exploitation indicator. ↗
• → Identify exposed Sophos Mobile on-premises instances via Shodan favicon hash -1274798165 or title 'sophos mobile', and FOFA icon_hash=-1274798165 or title='Sophos Mobile'. ↗
• → Out-of-band (OOB) detection: monitor for unexpected outbound HTTP or DNS callbacks triggered from the Sophos Mobile server, which indicate successful XXE/SSRF exploitation. ↗

• · Vulnerability affects Sophos Mobile managed on-premises versions 5.0.0 through 9.7.4 only; cloud-hosted deployments are not affected. ↗
• · The exploit requires no authentication (PR:N, UI:N per CVSS), meaning the /servlets/OmaDsServlet endpoint is reachable without credentials and should be restricted at the network perimeter if patching is not immediately possible. ↗
• · The nuclei template uses a 50-second timeout for the exploit request, suggesting the XXE/SSRF callback may be slow or delayed; detection rules should account for delayed OOB responses. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

vulncheck 9.8 CRITICAL

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-611