CyberSecBulletin
CVE-2022-27778NVD status: Modified

https://github.com/curl/curl: Use of Incorrectly-Resolved Name or Reference

Published Updated By the CyberSecBulletin desk

CVE-2022-27778 is a high-severity use of incorrectly-resolved name or reference vulnerability in https://github.com/curl/curl, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected https://github.com/curl/curl versions: fixed in 7.83.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.81% chance of exploitation within 30 days, which is in the top 9.8% of all scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update SIMATIC S7-1500 CPU 1518-4 PN/DP MFP to V3.1.5 or a later version.
  2. Update SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP to V3.1.5 or a later version.
  3. Update SIPLUS S7-1500 CPU 1518-4 PN/DP MFP to V3.1.5 or a later version.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  5. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
Https://github.com/curl/curlhttps://github.com/curl/curlfixed in 7.83.1Not stated
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 up to, but not including, V3.1.5V3.1.5
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 up to, but not including, V3.1.5V3.1.5
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 up to, but not including, V3.1.5V3.1.5
HaxxCurl7.83.0Not stated
NetAppActive Iq Unified ManagerNot specified in the recordNot stated
NetAppClustered Data OntapNot specified in the recordNot stated
NetAppOncommand InsightNot specified in the recordNot stated
NetAppOncommand Workflow AutomationNot specified in the recordNot stated
NetAppSnapcenterNot specified in the recordNot stated
NetAppSolidfire & Hci Management NodeNot specified in the recordNot stated
NetAppH300s FirmwareNot specified in the recordNot stated
NetAppBh500s FirmwareNot specified in the recordNot stated
NetAppH700s FirmwareNot specified in the recordNot stated
NetAppH410s FirmwareNot specified in the recordNot stated
NetAppHci Compute Node FirmwareNot specified in the recordNot stated
OracleMySQL Server5.7.38 and earlier; 8.0.0 through 8.0.29Not stated
SplunkUniversal Forwarder8.2.0 up to, but not including, 8.2.12; 9.0.0 up to, but not including, 9.0.6; 9.1.08.2.12, 9.0.6

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.1HighNVD
CVSS 2.05.8MediumNVD

Official description

A use of incorrectly resolved name vulnerability fixed in 7.83.1 might remove the wrong file when `--no-clobber` is used together with `--remove-on-error`.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Use of Incorrectly-Resolved Name or Reference

The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.

More Use of Incorrectly-Resolved Name or Reference vulnerabilities (CWE-706)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Patches and release notes

Third-party and government advisories

Technical write-ups (may include proof of concept)

Other vulnerabilities in https://github.com/curl/curl

All https://github.com/curl/curl vulnerabilities

Recent Use of Incorrectly-Resolved Name or Reference vulnerabilities

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