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CVE-2004-1897· NVD / CVE Program· CNA mitre

Administration interface in Monit 1.4 through 4.2 allows remote attackers to cause a denial of service (segmentation fault) by sending a Bas

Administration interface in Monit 1.4 through 4.2 allows remote attackers to cause a denial of service (segmentation fault) by sending a Basic Authentication request without a password, which causes Monit to decrement a null pointer and perform an out-of-bounds read.

MediumCVSS 5.0 · v2.0—Proof of concept Fix available
Published
Dec 31, 2004
Updated
Jun 16, 2026
EPSS
8.7% · 95th percentile
CWE
—
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Report tools

JSON

Action score

23

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 8.7%

Affected systems

VendorProduct
tildeslashmonit

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12monitbefore 1:4.2.1-11:4.2.1-1

Same product

tildeslash: all records

Other highest-scoring records for the same primary product.

  • CVE-2003-1083Stack-based buffer overflow in Monit 1.4 to 4.1 allows remote attackers to execute arbitrary code via a long HTTP request.
    46Plan
  • CVE-2004-1898Stack-based buffer overflow in the administration interface in Monit 1.4 through 4.2 allows remote attackers to execute arbitrary code via a
    45Plan
  • CVE-2019-11393An issue was discovered in /admin/users/update in M/Monit before 3.7.3.
    40Plan
  • CVE-2022-26563An issue was discovered in Tildeslash Monit before 5.31.0, allows remote attackers to gain escilated privlidges due to improper PAM-authoriz
    35Monitor
  • CVE-2019-11455A buffer over-read in Util_urlDecode in util.c in Tildeslash Monit before 5.25.3 allows a remote authenticated attacker to retrieve the cont
    33Monitor
  • CVE-2004-1899The administration interface in Monit 1.4 through 4.2 allows remote attackers to cause an off-by-one overflow via a POST that contains 1024
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:monit1:4.2.1-1 · Debian:12Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2004-04-12

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-263 d
  2. Published
  3. TodaySep 30, 2026+7944 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
P

Weakness class (CWE)

—

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records