So Listing Tabs: Deserialization of Untrusted Data
CVE-2022-24108 is a critical-severity deserialization of untrusted data vulnerability in So Listing Tabs from Skyoftech, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected So Listing Tabs versions: 2.2.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 32.6% chance of exploitation within 30 days, which is in the top 1.63% of all scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of So Listing Tabs you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Skyoftech | So Listing Tabs | 2.2.0 | Not stated |
Version data comes from NVD's product matching. 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
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- 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:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.8 | Critical | NVD |
| CVSS 2.0 | 7.5 | High | NVD |
Official description
The Skyoftech So Listing Tabs module 2.2.0 for OpenCart allows a remote attacker to inject a serialized PHP object via the setting parameter, potentially resulting in the ability to write to files on the server, cause DoS, and achieve remote code execution because of deserialization of untrusted data.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
How developers prevent this class of flaw
- If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
- When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
- Explicitly define a final object() to prevent deserialization.
More Deserialization of Untrusted Data vulnerabilities (CWE-502)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- codecanyon.net/item/so-listing-tabs-responsive-opencart-module/12388133Product, Third Party Advisory
- smartaddons.com/opencart-extensions/so-listing-tabs-responsive-opencart-30x-opencart-2x-moduleProduct, Third Party Advisory
Technical write-ups (may include proof of concept)
- packetstormsecurity.com/files/167197/OpenCart-So-Listing-Tabs-2.2.0-Unsafe-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
- seclists.org/fulldisclosure/2022/May/30Exploit, Mailing List, Third Party Advisory
Recent Deserialization of Untrusted Data vulnerabilities
- 7.8 High severity
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
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