Vulnerabilities > CVE-2015-7510 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Systemd Project Systemd 223
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Stack-based buffer overflow in the getpwnam and getgrnam functions of the NSS module nss-mymachines in systemd.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041_CURL.NASL description An update of the curl package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121748 published 2019-02-07 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121748 title Photon OS 1.0: Curl PHSA-2017-0041 code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from VMware Security Advisory PHSA-2017-0041. The text # itself is copyright (C) VMware, Inc. include('compat.inc'); if (description) { script_id(121748); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2019/02/07"); script_cve_id("CVE-2017-1000100"); script_name(english:"Photon OS 1.0: Curl PHSA-2017-0041"); script_summary(english:"Checks the rpm output for the updated packages."); script_set_attribute(attribute:"synopsis", value: "The remote PhotonOS host is missing multiple security updates."); script_set_attribute(attribute:"description", value: "An update of the curl package has been released."); script_set_attribute(attribute:"see_also", value:"https://github.com/vmware/photon/wiki/Security-Updates-82.md"); script_set_attribute(attribute:"solution", value: "Update the affected Linux packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-7510"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/07"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/07"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:curl"); script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:1.0"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"PhotonOS Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/PhotonOS/release"); if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, "PhotonOS"); if (release !~ "^VMware Photon (?:Linux|OS) 1\.0(\D|$)") audit(AUDIT_OS_NOT, "PhotonOS 1.0"); if (!get_kb_item("Host/PhotonOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "PhotonOS", cpu); flag = 0; if (rpm_check(release:"PhotonOS-1.0", reference:"curl-7.54.0-3.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"curl-debuginfo-7.54.0-3.ph1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "curl"); }
NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041_FREETYPE2.NASL description An update of the freetype2 package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121749 published 2019-02-07 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121749 title Photon OS 1.0: Freetype2 PHSA-2017-0041 NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041_GLIBC.NASL description An update of the glibc package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121750 published 2019-02-07 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121750 title Photon OS 1.0: Glibc PHSA-2017-0041 NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041.NASL description An update of [systemd,curl,glibc,freetype2] packages for PhotonOS has been released. last seen 2019-02-21 modified 2019-02-07 plugin id 111890 published 2018-08-17 reporter Tenable source https://www.tenable.com/plugins/index.php?view=single&id=111890 title Photon OS 1.0: Curl / Freetype2 / Glibc / Systemd PHSA-2017-0041 (deprecated) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041_SYSTEMD.NASL description An update of the systemd package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121751 published 2019-02-07 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121751 title Photon OS 1.0: Systemd PHSA-2017-0041
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1284642
- https://bugzilla.redhat.com/show_bug.cgi?id=1284642
- https://github.com/keszybz/systemd/commit/cb31827d62066a04b02111df3052949fda4b6888
- https://github.com/keszybz/systemd/commit/cb31827d62066a04b02111df3052949fda4b6888
- https://github.com/systemd/systemd/issues/2002
- https://github.com/systemd/systemd/issues/2002