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Vulnerability record · CVE-2012-4442 · published 5 October 2012

CVE-2012-4442: Monkey-project monkey permissions and access controls vulnerability

Monkey Project · Monkey

Monkey HTTP Daemon 0.9.3 retains the supplementary group IDs of the root account during operations with a non-root effective UID, which might allow local users to bypass intended file-read restrictions by leveraging a race condition in a file-permission check.

4.7 CVSS 2.0 Medium EPSS 0.31% · top 78.3% CWE-264 · Permissions and access controls
4.7CVSS 2.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Monkey HTTP Daemon 0.9.3 retains the supplementary group IDs of the root account during operations with a non-root effective UID, which might allow local users to bypass intended file-read restrictions by leveraging a race condition in a file-permission check.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688007
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688879
http://www.openwall.com/lists/oss-security/2012/09/21/3
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688007
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688879
http://www.openwall.com/lists/oss-security/2012/09/21/3

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2013-2159Monkey-project monkey improper authentication vulnerabilityMonkey HTTP Daemon: broken user name authenticationEPSS 2.8%7.5CVE-2025-63656Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the header_cmp function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service …EPSS 1.2%7.5CVE-2025-63657Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the mk_mimetype_find function (mk_server/mk_mimetype.c) of monkey commit f37e984 allows attackers to cause a Denial of Servi…EPSS 1.2%7.5CVE-2025-63658Monkey-project monkey stack-based buffer overflow vulnerabilityA stack overflow in the mk_http_index_lookup function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (D…EPSS 1.3%7.5CVE-2025-63649Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the http_parser_transfer_encoding_chunked function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to…EPSS 1.1%7.5CVE-2025-63650Monkey-project monkey out-of-bounds read vulnerabilityAn out-of-bounds read in the mk_ptr_to_buf in mk_core function (mk_memory.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (…EPSS 1.2%7.5CVE-2025-63651Monkey-project monkey use after free vulnerabilityA use-after-free in the mk_string_char_search function (mk_core/mk_string.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (…EPSS 1.1%7.5CVE-2025-63652Monkey-project monkey use after free vulnerabilityA use-after-free in the mk_http_request_end function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (Do…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2012-4442), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.