CyberSecBulletin
CVE-2024-1920NVD status: Analyzed

LightPicture: Use of Hard-coded Cryptographic Key

CVE-2024-1920 is a high-severity use of hard-coded cryptographic key vulnerability in LightPicture from Osuuu, 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, without any action from a user. Affected LightPicture versions: 1.2.0; 1.2.1; 1.2.2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.75% chance of exploitation within 30 days, higher than 55% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of LightPicture you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
OsuuuLightPicture1.2.0; 1.2.1; 1.2.2Not stated

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
HighSuccess depends on conditions outside the attacker's control.
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.15.6MediumCNA (vuldb.com)
CVSS 3.18.1HighNVD
CVSS 2.05.1MediumCNA (vuldb.com)

Official description

A vulnerability, which was classified as critical, has been found in osuuu LightPicture up to 1.2.2. This issue affects the function handle of the file /app/middleware/TokenVerify.php. The manipulation leads to use of hard-coded cryptographic key . The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-254855.

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

The underlying weakness: Use of Hard-coded Cryptographic Key

The product uses a hard-coded, unchangeable cryptographic key.

How developers prevent this class of flaw

  • Prevention schemes mirror that of hard-coded password storage.

More Use of Hard-coded Cryptographic Key vulnerabilities (CWE-321)

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

Third-party and government advisories

Other references

Other vulnerabilities in LightPicture

All LightPicture vulnerabilities

Recent Use of Hard-coded Cryptographic Key vulnerabilities

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