What is CVE-2020-12772?

CVE-2020-12772 is a high-severity vulnerability in Igniterealtime Spark, classified under Information Disclosure. CVSS score: 8.8/10. Published 2020-05-12.

How severe is CVE-2020-12772?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-12772 known to be exploited?

9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Igniterealtime Spark

CVE-2020-12772

An issue was discovered in Ignite Realtime Spark 2.8.3 (and the ROAR plugin for it) on Windows. A chat message can include an IMG element with a SRC attribute referencing an external host's IP address. Upon access to this external host, the (NT)LM hashes of the user are sent with the HTTP request. This allows an attacker to collect these hashes, crack them, and potentially compromise the computer. (ROAR can be configured for automatic access. Also, access can occur if the user clicks.)

Vulnerability class: Information Disclosure

EPSS: 0.017 (75.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Igniterealtime Spark — versions 2.8.3
Microsoft Windows
N/a — versions n/a

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-12772?: CVE-2020-12772 is a high-severity vulnerability in Igniterealtime Spark, classified under Information Disclosure. CVSS score: 8.8/10. Published 2020-05-12.
How severe is CVE-2020-12772?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-12772 known to be exploited?: 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.